10 inch cctv tft lcd monitor free sample

A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls.

The display in modern monitors is typically an LCD with LED backlight, having by the 2010s replaced CCFL backlit LCDs. Before the mid-2000s,CRT. Monitors are connected to the computer via DisplayPort, HDMI, USB-C, DVI, VGA, or other proprietary connectors and signals.

Originally, computer monitors were used for data processing while television sets were used for video. From the 1980s onward, computers (and their monitors) have been used for both data processing and video, while televisions have implemented some computer functionality. In the 2000s, the typical display aspect ratio of both televisions and computer monitors has changed from 4:3 to 16:9.

Modern computer monitors are mostly interchangeable with television sets and vice versa. As most computer monitors do not include integrated speakers, TV tuners, nor remote controls, external components such as a DTA box may be needed to use a computer monitor as a TV set.

Early electronic computer front panels were fitted with an array of light bulbs where the state of each particular bulb would indicate the on/off state of a particular register bit inside the computer. This allowed the engineers operating the computer to monitor the internal state of the machine, so this panel of lights came to be known as the "monitor". As early monitors were only capable of displaying a very limited amount of information and were very transient, they were rarely considered for program output. Instead, a line printer was the primary output device, while the monitor was limited to keeping track of the program"s operation.

Multiple technologies have been used for computer monitors. Until the 21st century most used cathode-ray tubes but they have largely been superseded by LCD monitors.

The first computer monitors used cathode-ray tubes (CRTs). Prior to the advent of home computers in the late 1970s, it was common for a video display terminal (VDT) using a CRT to be physically integrated with a keyboard and other components of the workstation in a single large chassis, typically limiting them to emulation of a paper teletypewriter, thus the early epithet of "glass TTY". The display was monochromatic and far less sharp and detailed than on a modern monitor, necessitating the use of relatively large text and severely limiting the amount of information that could be displayed at one time. High-resolution CRT displays were developed for specialized military, industrial and scientific applications but they were far too costly for general use; wider commercial use became possible after the release of a slow, but affordable Tektronix 4010 terminal in 1972.

Some of the earliest home computers (such as the TRS-80 and Commodore PET) were limited to monochrome CRT displays, but color display capability was already a possible feature for a few MOS 6500 series-based machines (such as introduced in 1977 Apple II computer or Atari 2600 console), and the color output was a speciality of the more graphically sophisticated Atari 800 computer, introduced in 1979. Either computer could be connected to the antenna terminals of an ordinary color TV set or used with a purpose-made CRT color monitor for optimum resolution and color quality. Lagging several years behind, in 1981 IBM introduced the Color Graphics Adapter, which could display four colors with a resolution of 320 × 200 pixels, or it could produce 640 × 200 pixels with two colors. In 1984 IBM introduced the Enhanced Graphics Adapter which was capable of producing 16 colors and had a resolution of 640 × 350.

By the end of the 1980s color progressive scan CRT monitors were widely available and increasingly affordable, while the sharpest prosumer monitors could clearly display high-definition video, against the backdrop of efforts at HDTV standardization from the 1970s to the 1980s failing continuously, leaving consumer SDTVs to stagnate increasingly far behind the capabilities of computer CRT monitors well into the 2000s. During the following decade, maximum display resolutions gradually increased and prices continued to fall as CRT technology remained dominant in the PC monitor market into the new millennium, partly because it remained cheaper to produce.

There are multiple technologies that have been used to implement liquid-crystal displays (LCD). Throughout the 1990s, the primary use of LCD technology as computer monitors was in laptops where the lower power consumption, lighter weight, and smaller physical size of LCDs justified the higher price versus a CRT. Commonly, the same laptop would be offered with an assortment of display options at increasing price points: (active or passive) monochrome, passive color, or active matrix color (TFT). As volume and manufacturing capability have improved, the monochrome and passive color technologies were dropped from most product lines.

The first standalone LCDs appeared in the mid-1990s selling for high prices. As prices declined they became more popular, and by 1997 were competing with CRT monitors. Among the first desktop LCD computer monitors was the Eizo FlexScan L66 in the mid-1990s, the SGI 1600SW, Apple Studio Display and the ViewSonic VP140vision science remain dependent on CRTs, the best LCD monitors having achieved moderate temporal accuracy, and so can be used only if their poor spatial accuracy is unimportant.

High dynamic range (HDR)television series, motion pictures and video games transitioning to widescreen, which makes squarer monitors unsuited to display them correctly.

Organic light-emitting diode (OLED) monitors provide most of the benefits of both LCD and CRT monitors with few of their drawbacks, though much like plasma panels or very early CRTs they suffer from burn-in, and remain very expensive.

Radius of curvature (for curved monitors) - is the radius that a circle would have if it had the same curvature as the display. This value is typically given in millimeters, but expressed with the letter "R" instead of a unit (for example, a display with "3800R curvature" has a 3800mm radius of curvature.

Dot pitch represents the distance between the primary elements of the display, typically averaged across it in nonuniform displays. A related unit is pixel pitch, In LCDs, pixel pitch is the distance between the center of two adjacent pixels. In CRTs, pixel pitch is defined as the distance between subpixels of the same color. Dot pitch is the reciprocal of pixel density.

Pixel density is a measure of how densely packed the pixels on a display are. In LCDs, pixel density is the number of pixels in one linear unit along the display, typically measured in pixels per inch (px/in or ppi).

Contrast ratio is the ratio of the luminosity of the brightest color (white) to that of the darkest color (black) that the monitor is capable of producing simultaneously. For example, a ratio of 20,000∶1 means that the brightest shade (white) is 20,000 times brighter than its darkest shade (black). Dynamic contrast ratio is measured with the LCD backlight turned off. ANSI contrast is with both black and white simultaneously adjacent onscreen.

Color depth - measured in bits per primary color or bits for all colors. Those with 10bpc (bits per channel) or more can display more shades of color (approximately 1 billion shades) than traditional 8bpc monitors (approximately 16.8 million shades or colors), and can do so more precisely without having to resort to dithering.

Viewing angle is the maximum angle at which images on the monitor can be viewed, without subjectively excessive degradation to the image. It is measured in degrees horizontally and vertically.

Refresh rate is (in CRTs) the number of times in a second that the display is illuminated (the number of times a second a raster scan is completed). In LCDs it is the number of times the image can be changed per second, expressed in hertz (Hz). Determines the maximum number of frames per second (FPS) a monitor is capable of showing. Maximum refresh rate is limited by response time.

Response time is the time a pixel in a monitor takes to change between two shades. The particular shades depend on the test procedure, which differs between manufacturers. In general, lower numbers mean faster transitions and therefore fewer visible image artifacts such as ghosting. Grey to grey (GtG), measured in milliseconds (ms).

On two-dimensional display devices such as computer monitors the display size or view able image size is the actual amount of screen space that is available to display a picture, video or working space, without obstruction from the bezel or other aspects of the unit"s design. The main measurements for display devices are: width, height, total area and the diagonal.

With the introduction of flat panel technology, the diagonal measurement became the actual diagonal of the visible display. This meant that an eighteen-inch LCD had a larger viewable area than an eighteen-inch cathode-ray tube.

Estimation of monitor size by the distance between opposite corners does not take into account the display aspect ratio, so that for example a 16:9 21-inch (53 cm) widescreen display has less area, than a 21-inch (53 cm) 4:3 screen. The 4:3 screen has dimensions of 16.8 in × 12.6 in (43 cm × 32 cm) and area 211 sq in (1,360 cm2), while the widescreen is 18.3 in × 10.3 in (46 cm × 26 cm), 188 sq in (1,210 cm2).

Until about 2003, most computer monitors had a 4:3 aspect ratio and some had 5:4. Between 2003 and 2006, monitors with 16:9 and mostly 16:10 (8:5) aspect ratios became commonly available, first in laptops and later also in standalone monitors. Reasons for this transition included productive uses (i.e. besides Field of view in video games and movie viewing) such as the word processor display of two standard letter pages side by side, as well as CAD displays of large-size drawings and application menus at the same time.LCD monitors and the same year 16:10 was the mainstream standard for laptops and notebook computers.

In 2010, the computer industry started to move over from 16:10 to 16:9 because 16:9 was chosen to be the standard high-definition television display size, and because they were cheaper to manufacture.

In 2011, non-widescreen displays with 4:3 aspect ratios were only being manufactured in small quantities. According to Samsung, this was because the "Demand for the old "Square monitors" has decreased rapidly over the last couple of years," and "I predict that by the end of 2011, production on all 4:3 or similar panels will be halted due to a lack of demand."

The resolution for computer monitors has increased over time. From 280 × 192 during the late 1970s, to 1024 × 768 during the late 1990s. Since 2009, the most commonly sold resolution for computer monitors is 1920 × 1080, shared with the 1080p of HDTV.2560 × 1600 at 30 in (76 cm), excluding niche professional monitors. By 2015 most major display manufacturers had released 3840 × 2160 (4K UHD) displays, and the first 7680 × 4320 (8K) monitors had begun shipping.

Every RGB monitor has its own color gamut, bounded in chromaticity by a color triangle. Some of these triangles are smaller than the sRGB triangle, some are larger. Colors are typically encoded by 8 bits per primary color. The RGB value [255, 0, 0] represents red, but slightly different colors in different color spaces such as Adobe RGB and sRGB. Displaying sRGB-encoded data on wide-gamut devices can give an unrealistic result.Exif metadata in the picture. As long as the monitor gamut is wider than the color space gamut, correct display is possible, if the monitor is calibrated. A picture which uses colors that are outside the sRGB color space will display on an sRGB color space monitor with limitations.Color management is needed both in electronic publishing (via the Internet for display in browsers) and in desktop publishing targeted to print.

Most modern monitors will switch to a power-saving mode if no video-input signal is received. This allows modern operating systems to turn off a monitor after a specified period of inactivity. This also extends the monitor"s service life. Some monitors will also switch themselves off after a time period on standby.

Most modern monitors have two different indicator light colors wherein if video-input signal was detected, the indicator light is green and when the monitor is in power-saving mode, the screen is black and the indicator light is orange. Some monitors have different indicator light colors and some monitors have blinking indicator light when in power-saving mode.

Many monitors have other accessories (or connections for them) integrated. This places standard ports within easy reach and eliminates the need for another separate hub, camera, microphone, or set of speakers. These monitors have advanced microprocessors which contain codec information, Windows interface drivers and other small software which help in proper functioning of these functions.

Monitors that feature an aspect ratio greater than 2:1 (for instance, 21:9 or 32:9, as opposed to the more common 16:9, which resolves to 1.77:1).Monitors with an aspect ratio greater than 3:1 are marketed as super ultrawide monitors. These are typically massive curved screens intended to replace a multi-monitor deployment.

These monitors use touching of the screen as an input method. Items can be selected or moved with a finger, and finger gestures may be used to convey commands. The screen will need frequent cleaning due to image degradation from fingerprints.

Some displays, especially newer flat panel monitors, replace the traditional anti-glare matte finish with a glossy one. This increases color saturation and sharpness but reflections from lights and windows are more visible. Anti-reflective coatings are sometimes applied to help reduce reflections, although this only partly mitigates the problem.

Most often using nominally flat-panel display technology such as LCD or OLED, a concave rather than convex curve is imparted, reducing geometric distortion, especially in extremely large and wide seamless desktop monitors intended for close viewing range.

Newer monitors are able to display a different image for each eye, often with the help of special glasses and polarizers, giving the perception of depth. An autostereoscopic screen can generate 3D images without headgear.

A combination of a monitor with a graphics tablet. Such devices are typically unresponsive to touch without the use of one or more special tools" pressure. Newer models however are now able to detect touch from any pressure and often have the ability to detect tool tilt and rotation as well.

The option for using the display as a reference monitor; these calibration features can give an advanced color management control for take a near-perfect image.

Raw monitors are raw framed LCD monitors, to install a monitor on a not so common place, ie, on the car door or you need it in the trunk. It is usually paired with a power adapter to have a versatile monitor for home or commercial use.

A desktop monitor is typically provided with a stand from the manufacturer which lifts the monitor up to a more ergonomic viewing height. The stand may be attached to the monitor using a proprietary method or may use, or be adaptable to, a VESA mount. A VESA standard mount allows the monitor to be used with more after-market stands if the original stand is removed. Stands may be fixed or offer a variety of features such as height adjustment, horizontal swivel, and landscape or portrait screen orientation.

A fixed rack mount monitor is mounted directly to the rack with the flat-panel or CRT visible at all times. The height of the unit is measured in rack units (RU) and 8U or 9U are most common to fit 17-inch or 19-inch screens. The front sides of the unit are provided with flanges to mount to the rack, providing appropriately spaced holes or slots for the rack mounting screws. A 19-inch diagonal screen is the largest size that will fit within the rails of a 19-inch rack. Larger flat-panels may be accommodated but are "mount-on-rack" and extend forward of the rack. There are smaller display units, typically used in broadcast environments, which fit multiple smaller screens side by side into one rack mount.

A stowable rack mount monitor is 1U, 2U or 3U high and is mounted on rack slides allowing the display to be folded down and the unit slid into the rack for storage as a drawer. The flat display is visible only when pulled out of the rack and deployed. These units may include only a display or may be equipped with a keyboard creating a KVM (Keyboard Video Monitor). Most common are systems with a single LCD but there are systems providing two or three displays in a single rack mount system.

A panel mount computer monitor is intended for mounting into a flat surface with the front of the display unit protruding just slightly. They may also be mounted to the rear of the panel. A flange is provided around the screen, sides, top and bottom, to allow mounting. This contrasts with a rack mount display where the flanges are only on the sides. The flanges will be provided with holes for thru-bolts or may have studs welded to the rear surface to secure the unit in the hole in the panel. Often a gasket is provided to provide a water-tight seal to the panel and the front of the screen will be sealed to the back of the front panel to prevent water and dirt contamination.

An open frame monitor provides the display and enough supporting structure to hold associated electronics and to minimally support the display. Provision will be made for attaching the unit to some external structure for support and protection. Open frame monitors are intended to be built into some other piece of equipment providing its own case. An arcade video game would be a good example with the display mounted inside the cabinet. There is usually an open frame display inside all end-use displays with the end-use display simply providing an attractive protective enclosure. Some rack mount monitor manufacturers will purchase desktop displays, take them apart, and discard the outer plastic parts, keeping the inner open-frame display for inclusion into their product.

According to an NSA document leaked to Der Spiegel, the NSA sometimes swaps the monitor cables on targeted computers with a bugged monitor cable in order to allow the NSA to remotely see what is being displayed on the targeted computer monitor.

Van Eck phreaking is the process of remotely displaying the contents of a CRT or LCD by detecting its electromagnetic emissions. It is named after Dutch computer researcher Wim van Eck, who in 1985 published the first paper on it, including proof of concept. Phreaking more generally is the process of exploiting telephone networks.

Masoud Ghodrati, Adam P. Morris, and Nicholas Seow Chiang Price (2015) The (un)suitability of modern liquid crystal displays (LCDs) for vision research. Frontiers in Psychology, 6:303.

Koren, Norman. "Gamut mapping". Archived from the original on 2011-12-21. Retrieved 2018-12-10. The rendering intent determines how colors are handled that are present in the source but out of gamut in the destination

Definition of terms clarified and discussed in Aaron Schwabach, Internet and the Law: Technology, Society, and Compromises, 2nd Edition (Santa Barbara CA: ABC-CLIO, 2014), 192-3. ISBN 9781610693509

A video magnifier, or closed-circuit television (CCTV) system, uses a stand-mounted or handheld video camera to project a magnified image onto a video monitor, a television (TV) screen, or a computer monitor. Cameras with zoom lenses provide variable magnification. In most of these systems, magnification level and focus are set after choosing a comfortable and functional working distance between the camera and the material to be viewed. Some systems use an auto-focus camera. Lower cost video magnifiers often use cameras that have a fixed focus and cannot vary magnification or camera-to-target distance. Most cameras also need their own light source.

All video magnifiers offer the option of viewing black letters on a white background or white letters on a black background. Controls for contrast and brightness are also standard. Many video magnifiers also provide other special on-screen features and controls including underlining or overlining of text. Some systems work jointly with a computer, offering the option of sharing the computer monitor. Color video magnifiers are useful for reading materials in which color is crucial, such as maps and color photographs. A radical departure in design from conventional video magnifiers is the use of head-mounted displays (HMD). They offer portability and new ways of viewing the display. Being able to capture and save an image is also a new function that has recently become available.

Video magnifier that features a 3-in-1 camera for seeing one"s self up close, reading, and distance viewing. Comes with 20", 22", 24", or 27" high-resolution LCD monitors that provide 1.6x to 99.5x adjustable magnification (varies with LCD size). The camera is also detachable, allowing one to use it at various workstations.

Handheld portable magnifier with a 7" high resolution LCD with large field of view adjustable magnification of 1.4x to 25x. May be used to read price tags, restaurant menus, ingredients on a package and directions.

Pocket-sized, portable video magnifier with a 3.5" wide-screen LCD monitor with a magnification of up to 17x. Has three user-friendly tactile buttons: on/off and mode; magnification; and freeze frame. Comes with a detachable reading stand.

Flexible, portable video magnifier for both near and distance viewing at school, work and home. May be used to view text, photos, blackboards, crafts, etc. and can magnify from 3.5x to 79x on a PC screen or VGA monitor. Has three viewing modes: reading, distance and self-view. The dual control panels on the top and bottom of the camera makes it easy for left-handed or right-handed users. Carrying case included.

Portable handheld pocket video magnifier with 1.5x to 15x magnification on a 3.5" LCD screen. Weighs 4.2 ounces and is ideal for people on the go. May be hung around the neck. Tangible magnification and color mode adjustment buttons are handily located above on the right. When placed flat on books or photographs, offers a comfortable viewing angle with a foldable reading stand. Has an auto-focus camera for shooting unreachable materials, such as books on a high shelf. Includes a built-in rechargeable lithium ion battery with 1400mAh capacity and an AC charger, stand, carry case and strap.

Five-inch LCD high-definition handheld portable video magnifier with 2.8x to 22x magnification. May also be used as a stand magnifier. Its unique, ergonomic three-position handle may be comfortably held in the center-balanced position for right-handed or left-handed use. Continuous digital zoom magnification easily increases or decreases the size of the text, photo or object being viewed. All function buttons, including the Freeze Image button, are large and conveniently located on or adjacent to the handle. Weighs less than 10 ounces and may be carried in a coat pocket or purse.

Handheld (with handle) 5.0" LCD HD video magnifier with a unique, ergonomic 3-position handle which can be comfortably held in the center-balanced position, for right-handed or left-handed use. Alternatively, use CANDY 5 HD II as a stand magnifier with included cradle.

Desktop video magnifier that comes with a high-definition monitor and standard camera with continuous magnification of 1.5x to 75x (optional: up to 170x) and adjustable document viewing modes: full color photo mode, 16 selectable high-contrast color combinations to improve contrast for better visibility, and from 1 to 4 selectable color combination presets. Comes with the following three camera functions and monitor options: standard camera with a 24" monitor, high-definition camera with a 24" Monitor, and a high-definition camera with a 24" monitor and OCR speech.

Offers three monitor options—full-color 17" TFT monitor, full-color 17" CRT monitor, or a black-and-white 17" CRT monitor—with the additional option of computer compatibility.

Video magnifier system that magnifies anything placed under it from 2x to 85x times its original size, always maintaining perfect focus. Also features a specially designed high-quality monitor and lighting design for optimal visual enhancement. The entire system can be controlled with a single button and customized to meet the user"s exact needs.

Full color, computer mouse video magnifier that can be plugged into any USB port on an Apple desktop or Notebook. Has a magnification range of 3x - 100x. Features include full color image, pure black text on a white background and variable magnification.

Handheld, full-color mouse-style video magnifier that connects to a single USB port on any PC with Windows 7, 8 or 10 with a variable magnification of 3x-100x. Offers high-contrast negative image (pure white text on black background) and high-contrast positive image (pure black text on white background), split screen and more.

Handheld dome magnifier with a continuous magnification range of 1.7x to 12x and 4.3" full color TFT widescreen display. Offers high-contrast viewing modes for easier reading (set up to 4 combinations from a possible choice of 16).

Portable video magnifier that features continuous zoom with 1.5x to 18x magnification, 8 megapixel high-definition and auto-focus camera for superior images, 5" full color TFT wide screen display and 16 high-contrast colors. Has a low vision customizable large icon menu and ergonomic design with two reading positions.

Portable electronic video magnifier that features continuous zoom with 1.5x to 18x magnification, 8 megapixel high-definition and auto-focus camera for superior images, 7" full color TFT wide screen display and 16 high-contrast colors. Has a low vision customizable large icon menu and ergonomic design with two reading positions.

Portable handheld video magnifier with continuous magnification of 2x to 20x and touchscreen controls. Has a 4.3" full-color TFT widescreen display and adjustable document viewing modes and full color for viewing photographs and images as well as four high-contrast color combinations for easier reading including black text on a yellow background.

Small, portable video magnifier with continuous magnification of up to 3x to 10x with a 4.3" full-color TFT widescreen. Displays text in true color, black and white and reverse. Also offers blue/yellow and black/yellow options for easier discrimination.

Screen enlarger that attaches to the top of a standard CRT style monitor. Magnifies 1.5x, reduces glare, and blocks UV rays. Easy to clean and install.

Portable handheld magnifier with a 4.3" TFT display that includes a power on/off switch and offers text and images in 3 levels of magnification--3x, 4.5x and 7x—all of which appear in a variety of color modes, including color, positive, negative, and semi-colors. Micro USB battery charge connector included.

Desktop video magnifier with a 24" high-resolution LCD screen, text-to-speech (OCR) software that reads any printed text aloud with the push of a button, and a 3-in-1 camera that rotates 340 degrees. Offers magnification up to 77x and 8 viewing modes to optimize contrast and brightness. Monitor can also be used as a display for a computer or iPad (additional hardware required).

Desktop video magnifier that features a full high-definition Sony 1080p screen, a 3-in-1 camera, magnification up to 77x, and full-page text-to-speech system. Great for applying make-up, shaving, reading, writing, viewing presentations and whiteboards. The slide mechanism provides flexibility for various camera arm positions.

iPad-compatible, portable, reading, writing and distance video magnifier that provides full-page OCR capability. Can be connected to a Mac via USB 3.0, a PC via USB 2.0/3.0, to a television or computer monitor with HDMI, or directly to an iPad screen via a dedicated Wi-Fi wireless access point. Common touchscreen gestures may be used to adjust the magnification level and image color on an iPad. Reading material may be manipulated smoothly and easily with a joystick control or touchscreen gestures which move the camera in response to touch. The OCR may be used to a scan and listen to a full page of text through a built-in speaker or headset (speaker jack available for earphone or headset).

Portable, high-definition handheld electronic video magnifier with a 7" high-definition LCD screen that offers a magnification range from 2.3x to 19x. Offers more than 12 contrast and 3 favorite color settings and three modes of use: out of pocket, with folding handle, or tabletop use. May be connected to a television to display enlarged pictures and text on a bigger screen. Can also store thousands of images for viewing anytime.

Desktop video magnifier with auto-focus and manual-focus capabilities with a magnification range of 3.5x to 65x on 22" LCD display or 3.0x to 57x on a 19" model. Monitor comes on an adjustable arm for easy height, tilt and swivel. Features adjustable contrast control and a viewing table equipped with front-to-back and side-to-side (x-y) slides that allow users to position materials under the camera unit for reading, writing, and viewing various items. The table can be locked with an easy one-lever brake feature.

Portable video magnifier with a 4.2" wide screen LCD screen and a 4x to 15x magnification range. Offers full color, black/white or white/black display.

Portable, high-definition video magnifier with average adjustable magnification of 2x to77x (varies with HD screen size). Attaches to any television or PC monitor.

Video magnification system consisting of a head-mounted display which can be worn like a pair of eyeglasses and is adjusted with a control unit. Video camera is enclosed within the front section of the 8-ounce Jordy eyeglasses and the camera is pointed by head movement. The head-mounted display is worn over prescription eyeglasses. Has a headband strap and an adjustable nosepiece. A lens on the front of the system can be slid over the main camera lens for reading and near viewing up to 50x. When placed on its optional desktop stand and attached to any monitor, it becomes a fully functional desktop video magnifier. Battery-operated and can be used to see near, far, and anything in between.

Full-color, mouse-style video magnifier with an ultra-lightweight 12" screen that can be easily mounted on any wall in the Kitchen. Offers MD Mode which provides pure white text on a black background for maximum contrast and reduced glare for anyone with acute sensitivity to light. This can be especially beneficial for anyone with macular degeneration. Other features include greyscale image, pure black text on a white background with 10x magnification.

Mouse-style video magnifier with an ultra-lightweight 12" screen that can be easily mounted on any wall in the Kitchen. Offers full-color magnification and MD mode, which provides pure white text on a black background for maximum contrast and reduced glare for anyone with acute sensitivity to light. This can be especially beneficial for anyone with macular degeneration. Other features include greyscale image, pure black text on a white background and 10x magnification.

Standalone scanning device that integrates reading and magnifying together. Built with multiple output interfaces such as VGA and HDMI and can be connected to any monitor or television (not included) via HDMI to get the additional display of the captured image, enabling user to see the image while listening to the text being read. Features high-quality, multilingual text recognition; magnifiers for reading entire page; pause, forward and rewind capability; adjustable reading speed; multiple text color to suit user’s specific need; crystal clear font at any zoom level.

Portable video magnifier with both near and distance viewing capabilities for reading, writing and viewing distance objects with a magnification range from 1.5x to 50x and a 12" TFT display. Function buttons include overview mode, freeze image function, viewing mode selection, brightness adjustment and semi-color selection.

Lightweight, portable electronic video magnifier with a large 5" high-contrast full-color LCD screen with MD mode (white text on black background) and variable magnification and a 6-hour battery life.

Monitor magnifier that fits over most 19" widescreen flat panel LCD monitors for desktop computers. Helps reduce glare, reflection and UV rays overall reducing eyestrain and fatigue. Magnifies up to 1.5x.

Video magnifier that can be connected to a computer or a monitor for use in a classroom for viewing materials or to record a lesson or presentation with the video recording feature or as a regular video magnifier at home, connected to an LVI monitor and a docking station. Comes with both HDMI and USB 3.0 connections and can be controlled by the integrated control box or from the computer’s keyboard. The camera is available in HD or SD resolution.

Connects to any monitor and is ideal for use at home for reading, working on scrapbooks, reviewing documents, or sharing photos or even looking at one’s self using the mirror mode. Comes with an HDMI connector. Has a built-in control panel and uses minimal space. Camera is available in HD or SD resolution. Accessories such as 2-i-1-carrying case and a docking station available.

Connects to any monitor and is ideal for use at home for reading, working on scrapbooks, reviewing documents, or sharing photos or even looking at one’s self using the mirror mode. Comes with an HDMI connector. Has a built-in control panel and uses minimal space. Camera is available in HD or SD resolution. Accessories such as 2-i-1-carrying case and a docking station available.

Portable video magnifier with a combined reading and distance camera, for connection either to a PC or to a computer screen. Comes with a high-resolution camera and weighs 2.9 lbs. and is mounted in a few seconds with a connection through USB 2.0. Additional features include video recording with sound, freezing of image and dual monitor support.

Portable video magnifier with an HD reading and distance camera. Comes with a low-vision adapted 17.3-inch monitor and a stable x-y table for comfortable reading and precise control. Has all the functions offered in a desktop video magnifier but can be folded and carried to another location easily. Good choice for users who read frequently and sometimes need to move their video magnifier between different locations, for example home and work, hotel, summer house, etc.

Foldable, portable video magnifier with a 13.3" monitor with full high-definition auto-focus camera. Can be connected to a PC/Mac with USB/HDMI connection (optional) and with TTS software for PC/Mac (optional) for reading text aloud.

Foldable, portable video magnifier with a 13.3" monitor with full auto-focus camera. Can be connected to a PC/Mac with USB/HDMI connection (optional) and with TTS software for PC/Mac (optional) for reading text aloud.

Portable, handheld digital video magnifier that connects to any television or computer monitor and may be used to read newspapers, magazines, recipe cards, and medicine labels. Offers16 to 28x adjustable magnification (20?? monitor and 4 viewing modes.

Color portable video magnifier with a magnification range of approximately 7.3x to 30x for reading and approximately 3x to 12x for writing. Comes with a 5.8" TFT-monitor (can be tilted).

Full-color, auto-focus video magnification system with optional monitor sizes and styles--the classic CRT 14" or 20" to the newer ergonomic sleek LCD 17" or 19" monitors and 2.7x to 85x adjustable magnification (varies with LCD screen size).

Desktop video magnifier that features a high-definition Sony auto-focus camera, high-resolution 24" LCD monitor and text-to-speech feature software (Nuance). Offers 28 viewing modes to optimize contrast and brightness, adjustable magnification from 2.4x to 70x, and a low-profile x-y table with a user-friendly lock mechanism. The monitor can also be used as a display for a computer or connected to an iPad (additional cables required). The screen easily pivots horizontally and vertically to provide the most comfortable viewing position.

High-performance desktop video magnifier, featuring a Full HD Sony® 1080p camera offering three OCR reading formats (full-page text, full-page picture, and single-line text).

Desktop electronic video magnifier that offers high-definition color and contrast for reading books and magazines, reading and writing letters, managing financial records, viewing color photos, or doing crossword puzzles. Features a high-definition camera, high-definition LCD screen that easily pivots horizontally and vertically to provide the most comfortable viewing position, simple, easy-to-use tactile controls, 2.4x to 73.2x magnification, depending on screen size and zoom table selected, adjustable viewing modes, and an x-y table with a user-friendly lock mechanism for smooth continuous reading.

Flexible full-color, auto-focus desktop magnifier with 7 viewing modes and 2.4x to 77x adjustable magnification (varies with LCD screen size). The monitor also offers a split-screen mode to allow users to view magnified images and the computer simultaneously. Screen pivots, tilts and swivels in all directions.

Small lightweight portable magnifier with a 2.8" TFT screen and three easy top-access buttons identified with high-contrast icons. Offers three discrete levels of magnification of approximately approx. 3x, 4.5x and 6.5x full range of color and color-select options. A freeze frame mode allows for storage and image manipulation.

Portable, handheld video magnifier with a 4.3" high-definition TFT LCD screen. Provides time and date information, has an automatic shut-off feature after 5 minutes of non-use to save battery power, and 5 contrast modes so users can customize the colors of the text and backgrounds to their individual needs. Magnification powers range from 4x to 12x and include the middle range powers of 5x, 6x, 8x, and 10x. Has a 4GB SD card that stores photos, which are downloadable to a PC or Mac computer through the included USB connection. When connected to a PC, a live image can also be seen on a computer monitor.

Handheld, grayscale mouse-style video magnifier that connects to a single USB port on a MacBook, Mac mini or iMac with a variable magnification of 3x-100x. Offers high-contrast negative image (pure white text on black background) and high-contrast positive image (pure black text on white background).

Handheld, grayscale mouse-style video magnifier that connects to a single USB port on any PC with Windows 7, 8 or 10 with a variable magnification of 3x-100x. Offers high-contrast negative image (pure white text on black background) and high-contrast positive image (pure black text on white background).

Foldable and lightweight portable video magnifier designed to connect to a monitor or a PC and provides magnification up to 100x. May be mounted on a swinging arm or flexible arm and provides distance, document, and self views.

Portable video magnifier with a 3-in-1 flexible camera for reading documents, distance viewing, and self-viewing. The camera, mounted on a rotating arm on a 17" flat panel monitor, has three axes and rotates up to 350 degrees.

Portable video magnifier camera mounted on a modular swivel arm for near, distance, and self viewing. Features an auto-focus camera with full color, black and white, and artificial colors image adjustment. VGA computer-compatible. Connects to various monitors.

Lightweight, handheld magnifier with 2x to 10x magnification for reading labels, prescriptions, price tags, menus, bus schedules and more. Features a 3.5" high resolution LCD display with adjustable brightness.

Lightweight, portable video magnifier with a high-definition camera with a 4.3" LCD display and adjustable magnification from 1.25x to 13.5x. Has easy-to-use large tactile buttons in two color choices and offers 28 available color select modes. Multi-purpose handle allows usage in various positions.

Lightweight, portable video magnifier with adjustable magnification from 2x to 10x that weighs less than 4 ounces. Offers 28 viewing modes, freeze image feature with capability to magnify and change mode, and image capture with save and recall.

Portable, foldable, and compact magnifier with a high resolution 10.4" LCD screen and is about the size of a laptop. Offers a variety of viewing modes: color, black and white, inverse, yellow on blue, and black on yellow with a magnification range of 3x to 36x. The easy to use rotational camera can be moved from desktop, distance, and self-viewing modes.

Portable, desktop video magnifier with a 15" LCD monitor and four simple front panel buttons and 2.5x to 40x auto-focus magnification. Also features a simple one piece/one plug design, full color/black and white or reverse viewing modes, a locking x/y table, and tilt angle display on the monitor.

Portable, desktop video magnifier with a 15" diagonal Active Color Matrix TFT LCD display and simple four-button front control panel and a magnification range of 3x to 21x. Also features a low-profile display, a reading table, and three image modes—photo, positive and negative images

Desktop video magnifier with Touch and Tap controls and Diamond Edge Text. With magnification from 1.2x to 20x, users can select from a wide variety of enhanced contrast options with Touch and Tap controls on a 20" LCD screen. Has no confusing knobs and dials, and no clumsy x-y table. Just place your document and tap to zoom in and start reading with your preset magnification, enhanced contrast and reading mode.

Desktop video magnifier with Touch and Tap controls and Diamond Edge Text. With magnification from 1.2x to 20x, users can select from a wide variety of enhanced contrast options with Touch and Tap controls on a 24" LCD screen. Has no confusing knobs and dials, and no clumsy x-y table. Just place your document and tap to zoom in and start reading with your preset magnification, enhanced contrast and reading mode.

Personal Vision Assistant with a 20" LCD screen that incorporates both a tabletop magnifier and a handheld magnifier. Includes a lightweight, portable 5" HD magnifier with a touch screen, that docks right into the tabletop unit with magnification ranges of 1x to 80x (Diamond Edge Text) and 1x to 20x (color).

Personal Vision Assistant with a 24" LCD screen that incorporates both a tabletop magnifier and a handheld magnifier. Includes a lightweight, portable 5" HD magnifier with a touch screen, that docks right into the tabletop unit with magnification ranges of 1x to 80x (Diamond Edge Text) and 1x to 20x (color).

Handheld, lightweight full-color, electronic magnifier with an integrated 4" TFT display and a magnification range of 3x to 18x. Has a built-in rechargeable battery, charger, cable, and a protective carrying case with belt loop, shoulder strap, and a wrist/neck strap.

Handheld, pocket-sized video magnifier with a 4.3" full-color screen with a magnification range of 2x to 14x magnification when used with handle extended and 5x to 10x when used flat on a table.

Portable, handheld video magnifier with a 5-megapixel, auto-focus camera and a full color, 5" tiltable LCD screen with continuous zoom from 2x to 14x.

Portable near/far desktop camera specifically designed for use with touch screen tablets. Suitable for distance tasks such as viewing a whiteboard or presentations and near viewing tasks like reading, hobbies, crafts or games. Freeze, save and retrieve images capabilities. Continuous zoom magnification to 50x or more with contrast enhancement. Connects to any Windows (7, 8, 10) laptop or tablet. Includes cables, SceneEye software, large print user manual and carrying case.

Desktop video magnifier with a fully adjustable auto-focus camera and monitor with a magnification range of 2x to 65x. Offers true color, enhanced black on white and reverse white on black contrast viewing. Controls at the bottom of the monitor allow for easy operation. The monitor is connected to an adjustable arm which may be positioned above, level with, or to the left or right of the x-y table. The table organizer in the x-y table provides a small storage space for pens and papers. Optional Effects Package includes color combination options, window shading and line markers.

Desktop auto-focus video magnifier with a magnification range of 2x to 65x with an adjustable camera and 17" or 19" flat panel monitor with black and white, color, and reverse white on black viewing for seeing near, intermediate and distant objects. The table organizer in the x-y table provides a small storage space for pens and papers. Optional Effects Package includes color combination options, window shading, and line markers.

Portable video magnifier with a 5" LCD TFT display, 5x, 7x, 9x, or 12x magnification and 5 different viewing modes: full color, black on white, white on black, black on yellow, and yellow on black.

Desktop video magnifier magnifies with a 19" LCD monitor and 3 viewing modes: desktop (2.6x to 57x magnification), distance (0.6x to 27x magnification) and self view (1x to 4x magnification).

Desktop video magnifier with 23" LCD monitor and magnification range of 3.7x to 75x. Offers a variety of viewing options: color mode, 16 user-selectable enhanced contrast modes, and positive and negative combinations.

Lightweight handheld video magnifier with a large 4.3" widescreen LCD display and large tactile controls. Provides magnification from 2x to 16x, 10 contrast modes, as well as the ability to freeze an image for a closer look.

Desktop video magnifier with 22" LCD monitor and magnification range of 3x to 75x. Offers a variety of viewing options: color mode, 16 user-selectable enhanced contrast modes, and positive and negative combinations.

Portable, foldable, lightweight video magnifier with magnification levels of up to 34x on a 32" screen that can be connected to a conventional television monitor of any size. Comes with a carrying case.

Completely collapsible and portable tabletop video magnification system with x-y table with a rotating camera for seeing near, intermediate, and far distances with an ultrathin LED backlit monitors with 1680 x 1050 resolution with both color, black and white viewing modes. Optional battery pack available. Optional Effects Package includes color combination options, window shading and line markers.

Desktop, auto-focus video magnifier with magnification levels of up to 77x (on a 24" monitor) with extra-wide x-y table for viewing large documents, and other items. Comes with a choice of monitors: 20", 22", 24". Can become computer compatible with the addition of the TOPAZ Connectivity Kit (optional with additional charge).

Portable video magnifier that can be used in conjunction with a laptop/PC through a USB port or be connected directly to a monitor via the VGA port. Has a magnification range of approximately 1.7x-86x, depending on the monitor. Comes with a rechargeable lithium-ion battery. Primarily designed for use by students for reading and distance viewing. Latest settings are always saved automatically. Video recording is also an option and can be selected during installation.

Video magnifier with full high-definition camera that can magnify text, pictures or objects from 1x to 100x. LVHD-technology guarantees high-contrast and flicker-free pictures in full HD+ quality and the unique N.E.L.E technology (Natural-Evolutional-Light-Experience) minimizes reflections and shadows. The high-tech LED flat screen monitor is available in three different sizes. Two different operating boards (one button or three buttons) assure easy operation. The freely movable x-y table, with friction brake in both directions, vertically and horizontally, allows for easy positioning of texts, pictures or objects.

Easy-to-use electronic handheld video magnifier that can magnify images up to 15x. Features include simple-to-use buttons, a large 4.3". wide screen color LCD display, five high-contrast viewing modes, and television connectivity for increased magnification.

Versatile and flexible video magnifier with a magnification power that adjusts to 3 distinct control settings—to 100x, 50x, 25x on a 27" screen. The patented extendable arm design floats easily over the entire work surface and can be easily extended over a user"s lap. The full-time auto-focus system continually renders a sharp image as the viewing head is moved to different positions.

Conventional non-HD VideoEye models with a 32" flat LCD screen. Magnifies from 2x to more than 100x power. Features control buttons that adjust precise magnification to raise or lower magnification power. Controls on the front also feature reverse image, focus lock, and black & white/color.

Portable, foldable, video magnifier with a 12.5", 16:9 wide screen monitor that can be folded to about the size of a laptop computer when not in use. Uses a high-definition camera to magnify documents (correspondence, newspapers, magazines, etc.) and photos from 1.8x to 30x magnification. With auto-focus, can be used with curved materials such as a pill bottle. Includes built-in batteries.

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* Rewards 3% back excludes taxes and shipping. Rewards are issued to your online Dell Rewards Account (available via your Dell.com My Account) typically within 30 business days after your order’s ship date. Rewards expire in 90 days (except where prohibited by law). “Current rewards balance” amount may not reflect the most recent transactions. Check Dell.com My Account for your most up-to-date reward balance. Total rewards earned may not exceed $2,000 within a 3-month period. Outlet purchases do not qualify for rewards. Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers and rewards subject to change without notice, not combinable with all other offers. See Dell.com/rewardsfaq. $50 in bonus rewards for Dell Rewards Members who open a new Dell Preferred Account (DPA), or Dell Business Credit (DBC) account on or after 8/10/2022. $50 bonus rewards typically issued within 30 business days after DPA or DBC open date.

*Expedited Delivery: * Expedited Delivery not available on certain TVs, monitors, batteries and adapters, and is available in Continental (except Alaska) U.S. only. Other exceptions apply. Not valid for resellers and/or online auctions. Offers subject to change, not combinable with all other offers. See Dell.com/rewardsfaq.

Security is a vital component in all areas of life because you cannot really have peace if you’re not safe. In many commercial establishments, careful plans are made regarding the security set-up because the safety and protection of all the individuals and possessions are paramount. Although hiring security personnel give some measure of comfort, they simply cannot do everything and have their eyes glued to all the details. This is where a CCTV security monitor plays a critical role in running a business because unlike a pair of eyes, these never blink nor get tired.

Because the camera monitor plays such a crucial job, it is important to find a reputable installer to help you set up your company or home system. A full CCTV camera system has the following items to help do its job. These are: Security cameras can be analog or digital

Typically, most CCTV cameras are hooked on various areas and can be transmitted to a video recorder to keep a permanent record, which can act as evidence in case something untoward happens. It can also be hooked to a CCTV monitor. The data transmitted can be either be audio and video combined or just plain video only.

Standing for “closed circuit TV camera”, this device is fitted on many different areas of commercial and residential facilities for surveillance purposes, to track movement, and keep the people and property secure. The CCTV system can either be used to document things and record them for later inspection or to keep track of things in a live setting for monitoring purposes.

A TV can actually be used as a CCTV Monitor as long as the camera output and the TV input match. For example, the camera can provide an HDMI output and the TV is capable of accepting an HDMI input, so they can be easily utilized together. Even if the output and input do not match, there are steps that can be done and equipment that can be added to make them compatible.

Sometimes, clients prefer not to have video recording for their surveillance and opt to have the inputs just on the TV monitor. They have varying reasons for this type of choice. For example: They merely want to check and see who the new guest is at the door of a home or a business facility

As a client, you can choose whatever set-up you want because only you know what is best for your home and business. You are the one with the full grasp of how things are done and what points to consider, so you can decide the best security measures to use. For your CCTV needs, only go to a trusted supplier. TC Tech Systems can help you set up your CCTV monitors and assist you with all of your business security needs. Contact us today to get started.

Insert the TF Card to Raspberry Pi, connect the Raspberry Pi and LCD by HDMI cable; connect USB cable to one of the four USB ports of Raspberry Pi, and connect the other end of the USB cable to the USB port of the LCD; then supply power to Raspberry Pi; after that if the display and touch both are OK, it means drive successfully (please use the full 2A for power supply).