custom lcd display diy supplier

Looking to take your project to the next level in terms of functionality and appearance? A custom LCD display might be the thing that gets you there, at least compared to the dot-matrix or seven-segment displays that anyone and their uncle can buy from the usual sources for pennies. But how does one create such a thing, and what are the costs involved? As is so often the case these days, it’s simpler and cheaper than you think, and [Dave Jones] has a great primer on designing and specifying custom LCDs.

The video below is part of an ongoing series; a previous video covered the design process, turning the design into a spec, and choosing a manufacturer; another discussed the manufacturer’s design document approval and developing a test plan for the module. This one shows the testing plan in action on the insanely cheap modules – [Dave] was able to have a small run of five modules made up for only $138, which included $33 shipping. The display is for a custom power supply and has over 200 segments, including four numeric sections, a clock display, a bar graph, and custom icons for volts, amps, millijoules, and watt-hours. It’s a big piece of glass and the quality is remarkable for the price. It’s not perfect – [Dave] noted a group of segments on the same common lines that were a bit dimmer than the rest, but was able to work around it by tweaking the supply voltage a bit.

We’re amazed at how low the barrier to entry into custom electronics has become, and even if you don’t need a custom LCD, at these prices it’s tempting to order one just because you can. Of course, you can also build your own LCD display completely from scratch too.

The process to take your LCD idea from a concept to having prototype samples in hand is simple and requires just the few steps listed below. (Download PDF)

In many cases, FocusLCDs’ lead time for custom LCD samples is as little as 6-7 weeks after you approve our counter drawings and data sheet. This lead time increases by 4-6 weeks between November to early February due to Chinese New year. Standard production orders for custom displays have a lead time of 10-12 weeks, which can increase by 2-4 weeks during Chinese New year.

Focus Display Solutions offers several LCD technologies. The majority of these displays can be customized to fit your need. Below is a short introduction to each type of LCD.

Ultra-Wide Viewing Display (UWVD) is a new technology that is named after one of its most notable characteristics – it is viewable from all angles. In addition to the viewing angle, this technology provides a better contrast than other options and can allow for multiple colors. Call one of our design specialists today to see if UWVD is the right technology for you.

Thin-Film-Transistor Liquid Crystal Displays (TFTs) are perhaps the most encountered display technology we see daily. Often seen in cell phones, tablets, cameras and countless other devices, this technology offers several hundreds of thousands of colors with a high pixel count to offer supreme visual clarity. In addition, all TFTs are available off the shelf with resistive and capacitive touch panel options.

Character LCDs have been around since the 1950s and are still very common. These displays offer 256 selectable characters and are available with several different font tables to show a variety of languages. They are most commonly known for their ease of programming wide variety of sizes, character arrays and colors.

Liquid Crystal Displays or more commonly known as LCDs are one of the most common electronic components which help us interact with an equipment or a device. Most personal portable equipment and even gigantic industrial equipment utilize a custom segment display to display data. For many portable consumer electronics, a segment LCD display is one of the biggest contributors to the overall cost of the device, hence designing a custom segment display can drive the cost down while also utilizing the display area in the most optimum manner. These displays have the lowest cost per piece, low power requirements, and a low tooling fee too.

At first thought, designing a custom segment LCD might look like a Herculean task, but trust me that it is easier than it seems. In this article, we have summarised and compared the display types and available technologies which are required to construct a custom segment LCD. We have also provided a flowchart that can act as a step-by-step guide while you design your own custom LCD. We have also provided the process we followed, a require gathering sheet we used for communicating our needs to the manufacturer, and a few other data and the quotation we received from the manufacturer.

Icons: A silhouette of any shape can be placed on the glass which enhances the ability to display data. For example, a symbol of a heart can be made to denote heart rate or an icon for a low battery to show that the battery needs to be charged. Icons are counted as a single pixel or segment and can give a lot more details than similar-sized text.

LCD Bias– It denotes the number of different voltage levels used in driving the segments, static drives (explained later in this article) only have 2 voltage levels or 2 bias voltage while multiplex drives have multiple voltage levels. For example, 1/3 will have 4 bias voltages.

LCDs utilizes the light modulating properties of liquid crystals which can be observed by using polarizing filters. Polarizing filters are special materials that have their molecules aligned in the same direction. If the light waves passing through polarisers have the same orientation as the filter, then the molecules of lights are absorbed by the filter, hence reducing the intensity of light passing through it, making it visible.

A custom LCD is important for maximizing the efficiency of the display area by adding custom symbols and characters. It also helps in reducing the cost and improving energy efficiency of the product. A higher number of custom symbols and specified placement of numerical and alphanumerical characters make the display more informative and readable for the user. This makes it look better than the plain old boring displays we get in the market. Furthermore, we can specify the viewing angle, contrast, and other specifications which can increase durability or give a better value for money for our intended usage.  A typical Custom Segment display is shown below, we will also show you how to design and fabricate the same further in the article.

The LCD display doesn’t emit any light of its own, therefore it requires an external source of illumination or reflector to be readable in dark environments.

While designing a custom segment LCD display, we have the leverage of choosing a lot of parameters that affect the final product. From the color of the display to the illumination technique and color of illumination as well as the type of input pins. Some important considerations we need to take while designing a custom 7 segment display are - the type of display, i.e. positive or negative, illumination method, driving technique, polarising type, and connection method. All these design criteria are explained below:

Positive and negative displays can be easily distinguished by the colour of the background and characters. Some common differences between the positive and negative displays are:

So, which one should you choose? When the displays are to be used in areas with higher ambient light, we should select positive segment LCD display as it has better visibility than negative segment LCD displays without using a backlight.

As we know that LED displays don’t emit any light, hence to illuminate it and make it visible in a dark environment, we can use different methods of illumination. The most common LCD Illumination methods are compared below:

For displays that need to be used for budget-friendly devices that should be small and rugged, LED lights are preferred for the displays due to the high durability and low cost of operations. For high brightness, CCFL and Incandescent lights can be used.

A polarizer film is the most important component of an LCD display, which makes it possible to display characters by controlling the light. There are 3 types of polarizers that can be used in the LCD display, the properties and difference are given below:

Displays can be categorized into two types, passive displays, and active display, passive displays are simpler to construct as they have 2 connections at each segment, the conductors comprise of an Indium Tin Oxide to create an image, whereas the active displays use thin-film transistors (TFT) arranged in a grid. The name is due to its ability to control each pixel individually.

If your displays have fewer segments, then static LCD drive is preferred as it is easier to control and cheaper to construct, and has a better contrast ratio. But let’s say that if the number of segments in the display are more than 30-40 then a multiplex LCD drive should be preferred as it has multiple common pins, hence reducing the total number of pins required to drive the display.

Choosing a connector type!!! For the prototyping phase or if you need to connect your LCD display on a Microcontroller directly, a pin type connector is the best and most economical option you have. If you need to connect your LCD display in a final product with a high volume of production which also requires to be extremely durable, but at the same time should not take up a lot of space, a Flex type LCD Connector will work best for you

LCDs have limited viewing angles and when seen from an angle they lose contrast and are difficult to be observed.  The viewing angle is defined by the angles perpendicular to the center of the display towards its right, left, up, and down which are denoted by the notations 3:00, 9:00, 12:00, and 6:00 respectively. The viewing angle of LCD can be defined as the angle w.r.t. to the bias angle at which the contrast of segments is legible.

To improve the viewing angle in an LCD, a Bias is incorporated in the design which shifts the nominal viewing angle with an offset. Another technique is to increase the Voltage, it affects the bias angle, making the display crisper when viewed from a direction.

For example, the viewing angle of a TN type TFT LCD is 45-65 degrees. Extra-wide polarising film (EWP) can increase the viewing angle by 10 degrees, using an O film polariser can make the viewing angles 75 degrees but these come at a cost of reduced contrast.

LCD Control chip or LCD driver chips can be mounted on the flex cable, display, or externally on a PCB. The placement of LCD control chip can affect the cost and size of the display. The 2 most common methods of chip placement are-Chip of Board (COB)and Chip on Glass(COG) which are described below:

We planned to design an air quality monitoring system for which we needed a custom segment LCD panel for an air quality monitoring device. Our product needs to display the following data: 2.5-micron and 10-micron particulate matter (PM) suspended in the air; the units should be in parts per million (PPM). CO2 in the air in PPM along with total volatile organic compounds present in the air in parts per billion (PPB). To make the product more usable, we included time in 24-hour format, Temperature in ºC, Battery status, loudspeaker status, Bluetooth status, and Wi-Fi status. And for some personal touch, we also added how good the air quality in the room is by using 3 different smileys.

We realized that it was impossible to provide all these data in a generic LCD available in the market, thus decided to build a custom LCD for our project.

A step-by-step flowchart is shown below to walk you through each and every step of selecting components and getting your custom segment LCD manufactured.

We started by listing down our requirements and drew a mock-up of the display on paper. After finalizing the placement of all the segments and icons on the prototype sketch of the display, we then decided which all icons and segments have to be kept on for the whole time and which needs to be driven. Realizing that there are too many segments, characters and icons, hence we selected a multiplex drive with 8 common pins which helped us bring down the total pins from an estimated 180 pins to less than 40 pins.

Since the device was meant to be used inside houses and offices, which are more often than not well lit and protected from environmental conditions, we opted for a positive mode display. For superior contrast ratio and better viewing angle, we chose a Film Super Twisted Nematic Display (FSTN) with a drive condition of 1/8 Duty and bias of 1/4.

Usually, the displays are mounted at a height of 4.5 feet from the ground, thus the viewing direction was selected to be 12"O clock with an operating frequency of 64Hz. We selected a Transmissive polarizer for the front glass and a reflective polarizer for the rear glass so that the natural light can pass through the front panel and the display can achieve the maximum contrast without the need for backlighting and we opted for the pin type connectors as they are easy for prototyping and are suitable for harsh environment with a lot of vibrations and shocks which best suited our purpose.

In the above image of a custom display design, we sent to the manufacturer, the red lines over multiple characters indicate that all these are considered as a single segment. For the sake of simplicity, we added test like T, S, U, B to denote Text, Symbols, Units, and Battery respectively. These characters were followed by numbers to simplify communication between us and the manufacturer. For example, if we needed any particular text or symbol to remain on, we can easily specify that to the manufacturer by using the corresponding text for that segment.

We mailed our requirements to multiple LCD manufacturers, (you will find a lot of LCD manufacturers on the Internet). Most LCD manufacturers have competitive pricing, and reply within a week. A sample requirement sheet is shown above which a customer needs to fill to specify all the details to the manufacturer.

This is a sample Custom Segment LCD quotation we got from one of the manufacturers. As you can see, the cost is based on the quantity. Higher the quantity, lower the cost. Apart from the cost per quantity, there is one more component called tooling fees. Tooling fee is a one-time fee charged by the manufacturer. It is for the technical design, support, and customization of the product. Customization of PCB or tooling of LCD can drive the tooling price higher or lower.

A custom segment LCD can help you personalize your product while also saving the overall cost of your product. The whole process will take you around 2-3 months, which will include the designing phase, prototyping phase, and getting your custom segment LCDs delivered to your doorstep. Higher ordering quantity will reduce the cost per piece of each unit, thus driving down the cost of your final product.

114518 lcd custom screen products are offered for sale by suppliers on Alibaba.comAbout 14% % of these are mobile phone lcds, 12%% are digital signage and displays, and 11%% are lcd modules.

A wide variety of lcd custom screen options are available to you, such as original manufacturer, odm and agency.You can also choose from datasheet, lcd custom screen,as well as from tft, ips, and standard lcd custom screen,

New Vision Display is a custom LCD display manufacturer serving OEMs across diverse markets. One of the things that sets us apart from other LCD screen manufacturers is the diversity of products and customizations we offer. Our LCD portfolio ranges from low-cost monochrome LCDs to high-resolution, high-brightness color TFT LCDs – and pretty much everything in between. We also have extensive experience integrating LCD screen displays into complete assemblies with touch and cover lens.

Sunlight readable, ultra-low power, bistable (“paper-like”) LCDs. Automotive grade, wide operating/storage temperatures, and wide viewing angles. Low tooling costs.

Among the many advantages of working with NVD as your LCD screen manufacturer is the extensive technical expertise of our engineering team. From concept to product, our sales and technical staff provide expert recommendations and attentive support to ensure the right solution for your project.

In addition, our extensive technology portfolio and manufacturing capabilities enable us to deliver high-quality products that meet the unique specifications of any application. To learn more about what makes us the display manufacturer for your needs, get in touch with us today.

As a leading LCD panel manufacturer, NVD manufactures custom LCD display solutions for a variety of end-user applications: Medical devices, industrial equipment, household appliances, consumer electronics, and many others. Our state-of-the-art LCD factories are equipped to build custom LCDs for optimal performance in even the most challenging environments. Whether your product will be used in the great outdoors or a hospital operating room, we can build the right custom LCD solution for your needs. Learn more about the markets we serve below.

We come across Liquid Crystal Display (LCD) displays everywhere around us. Computers, calculators, television sets, mobile phones, and digital watches use some kind of display to display the time.

An LCD screen is an electronic display module that uses liquid crystal to produce a visible image. The 16×2 LCD display is a very basic module commonly used in DIYs and circuits. The 16×2 translates a display of 16 characters per line in 2 such lines. In this LCD, each character is displayed in a 5×7 pixel matrix.

Contrast adjustment; the best way is to use a variable resistor such as a potentiometer. The output of the potentiometer is connected to this pin. Rotate the potentiometer knob forward and backward to adjust the LCD contrast.

A 16X2 LCD has two registers, namely, command and data. The register select is used to switch from one register to other. RS=0 for the command register, whereas RS=1 for the data register.

Command Register: The command register stores the command instructions given to the LCD. A command is an instruction given to an LCD to do a predefined task. Examples like:

Data Register: The data register stores the data to be displayed on the LCD. The data is the ASCII value of the character to be displayed on the LCD. When we send data to LCD, it goes to the data register and is processed there. When RS=1, the data register is selected.

Generating custom characters on LCD is not very hard. It requires knowledge about the custom-generated random access memory (CG-RAM) of the LCD and the LCD chip controller. Most LCDs contain a Hitachi HD4478 controller.

CG-RAM is the main component in making custom characters. It stores the custom characters once declared in the code. CG-RAM size is 64 bytes providing the option of creating eight characters at a time. Each character is eight bytes in size.

CG-RAM address starts from 0x40 (Hexadecimal) or 64 in decimal. We can generate custom characters at these addresses. Once we generate our characters at these addresses, we can print them by just sending commands to the LCD. Character addresses and printing commands are below.

LCD modules are very important in many Arduino-based embedded system designs to improve the user interface of the system. Interfacing with Arduino gives the programmer more freedom to customize the code easily. Any cost-effective Arduino board, a 16X2 character LCD display, jumper wires, and a breadboard are sufficient enough to build the circuit. The interfacing of Arduino to LCD display is below.

The combination of an LCD and Arduino yields several projects, the most simple one being LCD to display the LED brightness. All we need for this circuit is an LCD, Arduino, breadboard, a resistor, potentiometer, LED, and some jumper cables. The circuit connections are below.

28” Custom LCD Panel for your digital marquee needs. A great solution for most full-sized multicade cabinets. This screen carries a 1920x360 resolution and high definition pixel density for quality images. Also includes 12v power supply and 8gb USB thumbstick containing 4100 arcade marquee art assets and 6700 home system art assets. Pair with your favorite frontend and load up some marquees! Raw LCD only, mounting not included due to DIY cabinet variables. We recommend using VHB tape to secure the LCD to clear plexi that fits your cabinet. Specs below.

Newhaven Display provides the North American marketplace with cost effective high quality display devices ranging from LCD to VFD. In addition to our vast standard part offerings, we develop custom designs for all industries. We pride ourselves on first-rate customer support and development assistance.

All products are stocked at our Elgin, Illinois USA warehouse. Marketing is done through a nationwide network of independent sales representatives and stocking distributors. All displays are manufactured at our partner factories located in Mainland China and Taiwan locations. These are state-of-the-art facilities with over 12 years of experience with QS-9000, ISO-9001 and ISO-14001 certifications.

Explore the world of LCD module kits and learn how to choose the right kit for your DIY project. Discover the benefits, interface options, and setup process for creating your own custom display screen.

LCD (Liquid Crystal Display) module kits are DIY display screens that can be used for a variety of electronic projects. From hobbyists creating custom gaming devices to industrial professionals building control panels, LCD module kits offer a cost-effective and customizable solution for anyone looking to add a display screen to their project.

In this article, we will discuss the different types of LCDs available, including OLED, TFT, and IPS, and the benefits of using LCD module kits. We will also cover the key factors to consider when choosing the right LCD module kit for your project, such as screen resolution, contrast ratio, color depth, and brightness, as well as interface options and microcontroller compatibility.

When it comes to choosing the right LCD module kit, there are several key factors to consider. The first is screen resolution, which determines the sharpness and clarity of the display. A higher resolution means a clearer display, but also a higher cost.

Another important factor is contrast ratio, which refers to the difference between the brightest white and the darkest black that the screen can display. A higher contrast ratio results in better color depth and a more vivid display.

Color depth and brightness are also important considerations. Color depth refers to the number of colors that can be displayed, while brightness refers to the level of light emitted by the screen. A higher color depth and brightness will result in a more vivid and eye-catching display.

2. Connecting the LCD module - Connect the LCD module to the microcontroller according to the instructions provided with the kit. This may involve connecting power and ground, data lines, and control signals.

3. Writing the control code - Write the code that will control the LCD module. This may involve initializing the module, sending data to be displayed, and controlling the display"s parameters such as contrast and brightness.

4. Adjusting contrast and brightness - Adjust the contrast and brightness of the display as necessary. This may involve sending commands to the microcontroller to adjust the display"s parameters, or adjusting potentiometers on the LCD module itself.

It is important to carefully follow the instructions provided with the LCD module kit to ensure a successful setup. If you encounter any issues, consult the documentation or contact the manufacturer for assistance.

DIY electronic projects - LCD module kits are often used in hobbyist and DIY projects, such as creating custom displays, interfaces, and control systems.

Industrial and commercial use - LCD module kits can be used in industrial and commercial applications, such as machine control, process monitoring, and data display.

Gaming and entertainment - LCD module kits can be used in gaming and entertainment devices, such as arcade games, handheld gaming devices, and home entertainment systems.

These are just a few examples of the many applications for LCD module kits. The versatility and functionality of LCD modules make them a popular choice for a wide range of projects and applications.

{"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\nSh