2.2 spi tft lcd teensy 3.6 hookup for sale

The Prototyping System for Teensy 4.1 provides a flexible setup for working with the Teensy 4.1 microcontroller, the most powerful Arduino compatible microcontroller available today.

The baseboard provides the core features required in many setups including power input handling, logic level shifting, touch screen LCD for user interface and access to common buses and interfaces such as Ethernet, USB Host, CAN bus, RS485 bus, Serial TTL, I2C, level shifted I2C, SPI, level shifted SPI, WiFi and Bluetooth.

A Fully Stuffed version that comes with everything installed and includes all the accessories needed to basically just plug and go.  The ultimate in instant gratification.  Just add the Teensy 4.1 of your choice from the list down below to complete a fully functioning setup.

Add your choice of Teensy 4.1 from the memory configuration options below and the system will be fully assembled with the example software preloaded.  Just apply power and the system will come up and run the example code.  Plug in the earbuds to hear the audio.

The Teensy 4.1 Fully Loaded for Prototyping System have all the headers installed to properly mate up with the connectors on the baseboard.  VUSB trace is cut and a Schottky diode installed to properly isolate power.

If you already have a Teensy 4.1 that you want to use with this baseboard, it is fairly easy to adapt to it with nominal thru-hole soldering skills.  There are instructions toward the bottom of this page.

The area next to the Teensy 4.1 is designed to provide flexibility for working with various adapters for adding functionality to the system.  We offer a number of options below and it is possible to design your own.

The area next to the Teensy 4.1 is footprinted to accept 2 of the standard size Teensy adapters such as the Audio Rev D adapter for easily working with them.

Because of the power of the Teensy 4.1, it is very popular for use with audio projects because it is fast enough to synthesize music on the fly and the PJRC team provides excellent tools like the PJRC Audio System Design Tool for working with their audio module.  We have a version with pins preinstalled so it will plug into the baseboard.  It also comes with a microphone installed.  One comes installed in the Fully Stuffed version along with a 32GB SD card preloaded with sample WAV files.

The PT8211 is a low cost 16-bit stereo Digital-to-Analog (DAC) with line level output.  It is supported by the PJRC Audio System Design Tool which makes it easy to use with the Teensy 4.1.  We offer a version that is fully assembled with male header pins to make it plug-n-play with the baseboard.  It is also available in kit form on the product page.

The PJRC team that created Teensy also put together a very nice workshop for learning about audio processing using Teensy since Teensy has the horsepower to synthesize audio on the fly.  They also created a powerful Teensy Audio Library and Audio System Design Tool.

We have created this adapter to provide the user controls for going through the workshop and have modified the original workshop and programs as needed to work with this baseboard in our Audio Tutorial and Workshop.  The board is shortened to less than full width to provide clearance to also mount the Teensy 4.x Audio Adapter at the same time.  Standoffs provide mechanical support.

If you have an interest in learning how to use audio with Teensy or just want to explore more of what the Teensy can do, going through the audio workshop is very informative.  This board can also be used to provide a couple general purpose potentiometer and pushbutton inputs.

The same adapter area is also footprinted to accept a larger 4″ x 2.5″ adapter with access to all of the Teensy 4.1 pins available along the two edges of the PCB.

This adapter mounts a 400 tie-point high quality solderless breadboard for building temporary breadboard circuits.  The female headers on either end of the breadboard provide access to all of the Teensy 4.1 pins.  This allows circuits to be built, the whole baseboard assembly with solderless breadboard to be moved around and then the breadboard subassembly can be removed intact and replaced without having to reconnect anything.  Great for bouncing between several projects.

We have created an adapter that makes it very easy to work with a string of addressable LEDs.  Just plug in the LED strip and a 5V power source.  The adapter also includes the functionality of the popular Teensy Octo2811 Adapter for larger arrays in a physical format that works better with this baseboard.  This allows up to 8 channels of addressable LEDs using CAT cable

The Teensy 4.1 socket brings all I/O out from the bottom of the Teensy 4.1.  The socket also has a row of male headers for easily connecting logic analyzer or O’scope probes or for jumping pins over to a solderless breadboard or making temporary connections such as patching in the high-speed logic level converters.

We offer our Teensy 4.1 Fully Loaded for Prototyping System line of Teensy 4.1 products that are configured for use with this board and similar baseboard setups that bring the I/O down from the bottom of the Teensy 4.1.  They include the following changes from the standard Teensy 4.1:

A female 2×3 2mm header is mounted at the Ethernet connector location on the bottom side of the Teensy 4.1 which mates with an extended reach male header on the baseboard and connects the Teensy 4.1 to the MagJack on the baseboard.

Male 5-pin headers are mounted to the bottom side of the Teensy 4.1 to bring down the USB Host lines to connect to the on-board Host USB connector.  VBat connects to a CR2032 battery holder and On/Off and Program connect to buttons on the baseboard.

By separating the VUSB and VIN power inputs and placing a Schottky diode between them, this allows the Teensy 4.1 to be powered from both the USB cable and VIN input at the same time if the VIN power source also has a diode installed.  It also allows the modified Teensy 4.1 to be powered on the bench from the USB cable without being placed into a baseboard which can be handy at times.

When used with a 3rd party baseboard, it removes the need to solder a diode onto the bottom of the Teensy 4.1.  When used with our Prototyping System for Teensy 4.1 baseboard, the Schottky diode on the Teensy 4.1 is in parallel with another one on the baseboard, so is redundant.

This 5V VIN power provides power to the Teensy 5V VIN input, the ESP32-S 5V input and the LCD display which all have their own built-in 3.3V regulators.

The VIN power also feeds a 3.3V regulator that powers the 3V power rail on the board to take the load off the Teensy 4.1.  This arrangement also ensures that 3.3V is available no matter how the board is powered to avoid the possible issue of driving logic signals into an unpowered IC.

The Teensy 4.1 onboard 3.3V regulator output is not used on the baseboard, but the power is available on the T3V pins of the Teensy 4.1.  If these pins are used, be sure not to connect the T3V pins to the 3V or other powered rail or damage could result.  The same is true for the 3V3 pin of the ESP32-S.

If USB power is also connected to the Teensy 4.1 along with DC input power, the board contains the necessary Schottky diodes to separate the USB power from the VIN power as long as the VUSB/VIN trace is cut on the bottom of the Teensy 4.1 as is done on the Teensy 4.1 with offer for use with this baseboard.

The entire Teensy 4.1 footprint is brought out to the proto adapter area.  The outer 24-pin female headers support connecting to all of the Teensy 4.1 I/O pins and can fit a 4.0″ x 2.5″ adapter .  The inner 14-pin headers support inserting up to two of the standard PJRC 14-pin adapter boards like the popular Teensy 4.x Rev D Audio Adapter.

The only electrical differences is that the SPI Clk pin 13 and MOSI pin 11 lines to the adapter area have 56Ω series resistors to minimize signal reflections.  A second set of resistors feed these same signals to the LCD.  The 3V pins in the adapter area power are supplied from the baseboard 3.3V regulator and not the Teensy 4.1.  0.1uF bypass caps are connected to each of the power pins in this area.

The board supports either a 2.8″ or 3.2″ 320×240 color touchscreen LCD with the ILI9341 display controller.  This is the best supported display for the Teensy 4.1 and readily available from ProtoSupplies.com and PJRC.  The 3.2″ version comes with the Fully Stuffed option.

The onboard SD card slot on these displays generally don’t work without modification and the Teensy has an SD card slot, so they are not usually worth messing with.  The 4 SD pin locations on the right side of the display are there for mechanical support.  This allows a 4-pin male header to be soldered to the display and plugged into the female header.  The two sets of female header are provided because the 3.2″ display has a slightly wider footprint than the 2.8″ display.

The Teensy 4.1 Serial1 on pins D0 and D1 connects to the ESP32-S Serial 2 on pins 28 and 27 to provide communications between the two microcontrollers.

The ESP32-S can be used as a co-processor to the Teensy 4.1 to offload all WiFi or Bluetooth work.  The ESP32-S is much better suited for that type of work than the Teensy 4.1.  It can also be used to offload other processing work such as to act as a dedicated sensor monitor and motor controller for instance.

The other pins on the ESP32-S are unallocated, so can be repurposed as desired.  A row of adjacent male header pins is provided to make jumping over to a breadboard or the Teensy 4.1 easy, such as if you want to work with SPI instead of serial communications between the two microcontrollers.

Two jumpers allow the Teensy 4.1 Serial 1 signals on pins 1 and 0 (1-RX, 0-TX) to be disconnected from the ESP32-S if it is desired to free up pins D0 and D1 on the Teensy or if an alternate communication scheme such as SPI is being used with the ESP32.

The board has a MagJack for making wired Ethernet connections.  Teensy 4.1 has all the circuitry built-in for connecting to Ethernet and the two just need to be physically connected.

Note:  Due to Ethernet PHY chip shortages and price increases, some Teensy 4.1 on the market are now being built without this chip and do not have Ethernet capability.  All of the Teensy 4.1 we sell for this system have the PHY chip and full Ethernet capability, but if you plan to source or have already sourced a Teensy 4.1 from somewhere else for use with this board, keep that in mind if you plan to use Ethernet.

The baseboard has a extended length 2×3 2mm spacing male header to pickup the Ethernet connections from the bottom of the Teensy 4.1 that has a mating female header installed.

There is also a 2×3 2mm male header next to the MagJack that allows a Teensy 4.1 with a male Ethernet header already installed in the normal position to connect to the MagJack using an IDC cable like is supplied with the Teensy 4.1 Ethernet kit.

The USB Host is a 2nd USB port that allows you to connect USB devices to the Teensy 4.1.  It is fully independent of the main USB device port, so USB devices can communicate simultaneously with Teensy while Teensy communicates with a computer via the USB device port.  The USB Host port operates at up to 480Mbit/sec.  Use the

For providing power to the USB connector, there is a jumper USB 5V to select between using the standard switched USB 5V power from the Teensy 4.1 T4.1 or using the external VIN 5V unswitched power VIN which can be handy for powering higher current applications without having to resort to a powered hub.

The Teensy 4.1CAN3 bus on pins D30, D31 is connected to an SN65HVD230, 231 or 232 CAN bus transceiver.  These parts are all equivalent parts in this circuit and selected based on availability.

The receive output of the transceiver on D30 has a jumper J8 that can be used to disable this input into the Teensy 4.1 if the pin is to be used for other purposes.

RS485 is a long-line serial communication bus that allows multiple devices to connect to the same serial bus over long distances of up to 1200 meters.  The underlying protocol is standard TTL level RS232 but with differential transceivers used to extend to long distances and support multiple device drops.  Speeds of up to 2.5Mbit/sec are possible.  Handy for device control of one or more devices over longer distances or in electrically noisy environments such as industrial control.

The receive output of the transceiver on D34 has a jumper J7 which can be used to disable this input into the Teensy 4.1 if the pin is to be used for other purposes.

In addition, a 5V level shifted version of both buses is also provided using the standard MOSFET setup and 2.2K pull-up resistors that will work for most applications.  5V and ground is provided for the level shifted versions.

The SPI bus is also routed to the adapter area of the board.  CLK and MOSI each have two 56 ohm series resistors with the output of one branch going to the breakout header and LCD display and the second branch going to the adapter area to minimize reflections on the bus.

Serial7 on pins D28and D29 is brought out to a 4-pin header on the back edge of the board along with with 3.3V and ground for easy hookup to a serial device.

A CR2032 coin cell batter holder is located under the LCD display.  This connects to the VBat on the Teensy 4.1 for providing battery backup capability.

The On/Off button when pressed and held for 4 seconds turns off the Teensy 4.1 3.3V onboard regulator, thus shutting the Teensy down.  Pressing the button again for 0.5 seconds while off will turn the  3.3V back on and reboot the processor.  Note that this On/Off button has no affect on the baseboard 5V or 3.3V power.  It only affects the 3.3V regulator on the Teensy module itself.

Since designing basic PCBs through quick-turn houses is fairly easy these days, this feature allows users to design and build application specific circuits without having to deal with all the details of building a complete system which can be fairly daunting.  This can also be handy for designing and testing subsystems while prototyping a design before committing to a complete ground up design.  The adapter footprint is simply a 3.6″ wide Teensy 4.1 pinout as shown below.

A custom PCB height greater than 2.5″ can also be used if the overhang is on the front edge of the board or can also be on the back side if the LCD is not being used.

If you already have a Teensy 4.1 that you want to use with this baseboard, it is fairly easy to adapt to it with nominal thru-hole soldering skills and a sharp knife by following the directions below.

If you ordered the Fully Stuffed version and want to verify the basic setup works before modifying your Teensy 4.1, the unmodified Teensy can be installed in the socket and connected to a USB cable to download the example software.  Power for the baseboard will also come from the USB cable.  The ESP32-S will already be programmed so the setup should run as soon as the Teensy 4.1 has been programmed. Please Note:  It is important to not also apply power through the DC input on the baseboard until the Teensy 4.1 has been modified as follows or damage could result.

Cut the trace between the pads on the bottom of the Teensy 4.1 to isolate the USB power from VIN power.  Use a sharp X-acto knife or box knife with a new blade.  Angle the blade at about a 45 degree angle and press straight into the trace on one side.  Don’t use a sawing motion as you are just cutting through soft copper.  Move the blade to the other side of the trace and repeat the process to remove a small wedge of the trace.  A magnifier definitely makes this process easier if you have access to one.  A properly cut trace is shown at the bottom.  If you have a ohm meter, use it to verify the cut was successful by measuring across the pads.  You should not measure a dead short.

Install a female 2×3 2mm header on top of the tall 2×3 2mm male header if you Teensy does not already have a male header in that location.  Push it just slightly onto the male header, so you can align the pins with holes in the Teensy 4.1 first as you install the Teensy 4.1.

Install the Teensy 4.1 into its socket making sure that the pins of the headers you just installed all line up with the holes in the Teensy 4.1 and protrude through.  It doesn’t hurt to give a light tug on a couple of the 2×3 2mm female header pins to make sure it is seated firmly up against the bottom of the Teensy 4.1.

If there is a male Ethernet header already installed on the top of the Teensy 4.1, an IDC cable like provided with the Teensy 4.1 Ethernet kit can be used to mate with the male 2×3 2mm header next to the MagJack if you are planning to use that feature.

The setup described in this section illustrates the basic usage of some of the core parts of the system and provides a starting point for anyone just getting started with the Teensy 4.1 ecosystem.  It assumes that at least an LCD is installed and also looks to see if an ESP32-S and Teensy 4.x Rev D Audio adapter board with SD card are also installed to enable additional functionality.

If you ordered the Fully Stuffed version along with a Teensy 4.1, it will already be loaded with this software and will run as soon as power is applied.  If you ordered a Fully Stuffed version without the Teensy 4.1, you will just need to load the software into the Teensy 4.1 as everything else will be setup.

The programs are not overly clever on the programming to make them easier to follow (and because I am not overly clever at programming) and pull heavily from various sample programs.  The communications between the Teensy 4.1 and ESP32-S in particular are handled in a very simplistic fashion by passing simple text strings.

Checks to see if any of the PSRAM or Flash memory chips have been installed and reports that info out the serial port.  If you ordered a system with the Teensy 4.1 already installed, this also provides a way to verify that you received the correct version without having to pry the Teensy 4.1 out of its socket.

Configures the LCD display and touch screen and paints a couple of buttons on the screen.  One for playing audio and one for scanning for WiFi networks.

If a scan is requested, it sends the command ‘S’ for scan to the ESP32-S and then looks for a response back with the found networks.  The found networks are then listed on the LCD.

If the ESP32-S is installed and you have two USB cables, you can open two instances of the IDE with one connected to the Teensy 4.1 and one connected to the ESP32-S for downloading the programs and Serial Monitor windows can be opened on both to see what is going on.  This makes it easy to make program changes to either processor and download new code without messing with cables.  To open 2 separate instances of the IDE, they both need to be launched by clicking on the application icon.

Their are nine 0.138″ diameter holes which can accept up to 3.5mm or #6 screws unevenly spaced around the board.  The board ships with nine M3 8mm long nylon threaded standoffs and M3 6mm screws to provide mechanical support and electrical isolation when working with it on the bench.

Anyone working with the Teensy 4.1 should checkout the PJRC forum as it has exceptional technical support provided by a talented user base including Paul Stoffregen, the creator of the Teensy product line.

{"id":4795785936967,"title":"AC 260V 100A Digital LCD Panel Volt AMP Meter Power Energy Ammeter Voltmeter","handle":"ac-260v-100a-digital-lcd-panel-volt-amp-meter-power-energy-ammeter-voltmeter","description":"\u003cspan lang=\"en\"\u003e\u003cspan lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA Function\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eElectrical parameter measurement function (voltage, current, active power, energy)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eOverload alarm function (over power alarm threshold, backlight and power flashing to alarm).\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003ePower alarm threshold preset function (can set power alarm threshold).\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eReset energy function.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eStore data when power off.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eSTN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003e Backlight function.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan lang=\"en\"\u003e\u003cspan lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003e\u003cstrong\u003eB. Appearance and Key function\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eDisplay Interface\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003eThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan lang=\"en\"\u003e\u003cspan lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003e\u003cstrong\u003eII.Display format\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003ePower: test range: 0~22kW\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value will not be cleared and will exit the reset state. If there is no operation on the key within 10 seconds, the energy value will not be cleared and will exit the reset state.\n3. Set power alarm threshold\nStep1: Long press the key at least 3 seconds until the number in power display area flash,then release the key\nStep2: Powerarea display the current power alarm value and the last digit begin to flash, then you can short press the key to plus 1, short press the key can switch the digit which you want to set. The threshold can’t be over 25kw( note: the default value is 25kw)\n\nStep3: After finish the setting, long press the key over 3 seconds or there is no operation over 10 seconds, it will store data automatically and exit the set state.\n4. Power\/Energy switch\nYou can short press the key to switch display the power\/ energy, the display state will be store when power off.\nC. Precautions\n1. This module is suitable for indoor, please do not use outdoor.\n2. Applied load should not exceed the rated power.\n3. Wiring order can’t be wrong.\nD. Specification parameters\n1. Working voltage: 80 ~ 260VAC\n2. Test voltage: 80 ~ 260VAC\n3. Rated power: 22kW\n4. Operating frequency: 45-65Hz\n5. Measurement accuracy: 1.0 grade \n\nPackage Included:\n1PC*\"\u003ewithin 1KW, the display format is 0.0~999.9W;\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"result_box\" lang=\"en\"\u003e\u003cspan title=\"Description\nA Function\n1. Electrical parameter measurement function (voltage, current, active power, energy)\n2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm).\n3. Power alarm threshold preset function (can set power alarm threshold).\n4. Reset energy function.\n5. Store data when power off.\n6. STN whole viewing angleLCD (display voltage, current, active power\/energy at the same time)\n7. Backlight function.\nB. Appearance and Key function\nI. Display Interface\nThe large-screen STN whole viewing angle LCD can display voltage, current, power, energy at the same time.(note: power and energy display can be switched by the key.)\nII.Display format\n\n1.Power: test range: 0~22kW\nwithin 1KW, the display format is 0.0~999.9W;\n1KW and above, the display format is 1000~9999W;\n10kw and above, the display format is 10.0~22.0kW\n2.Energy: test range: 0~9999kWh\nWithin 10KWh, the display format is 0~9999Wh;\n10kWh and above, the display format is 10~9999kWh;\nOver 9999kwh will return 0\n3. Voltage: test range: 80~260V\nDisplay format: 80~260V\n4. Current: test range: 0~100A\nDisplay format: 0.00~99.99A\nIII. Key\n1. Backlight control\nShort press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.\n2. Reset energy\nStep1: Long press the key at least3 seconds until the number in energy display area flash, then release the key.\nStep2: If short press the key again, then the energy value is cleared and exit the reset state.If short press the key again, then the energy value wil