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Shenzhen GreenTouch Technology Co., Ltd Adhere to people-oriented, customer-oriented, quality first, service. Dedicated to providing customers with quality products, service and technical support.
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21.5 Inch Digitizer Resistive Touch Panel Overlay Kit Anti Oil And Anti Water

Shenzhen GreenTouch Technology Co., Ltd

21.5 Inch Digitizer Resistive Touch Panel Overlay Kit Anti Oil And Anti Water

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Brand Name : GreenTouch

Model Number : GT-4W-21.5A-1

Certification : CE, FCC, ROHS

Place of Origin : China

MOQ : 50

Payment Terms : T/T, MoneyGram

Supply Ability : 10,000pcs per month

Delivery Time : 3-7 working days after received your payment

Packaging Details : carton

Interface Type : USB or RS232

Resolution : 4096x4096

Working environment : Under sunlight, indoor and outdoor

Response time : Less than 10ms

Screen Ratio : 16:9

Position accuracy : 1.15~2.5mm

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High Accuracy 21.5 Inch 4 Wire Resistive Touch Screen Indoor Or Outdoor


  1. Can withstand more than 1,000,000 point
  2. 4096x4096 Resolution
  3. USB or RS232 Interface
  4. High accuracy and sensitivity
  5. Glass + Film or Film + Film Material
  6. Finger, gloved hand and touch pen activation
  7. Operable in various light conditions, indoor and outdoor
  8. Our products have passed CE, FCC, ROHS certification!

Model Information:

Product modelSzie4wire TP Product size
Out sizeTP(mm)VA size(mm)AA size(mm)ThicknessPFC location
GT-4W-21.5A-121.5"490.00 x 285.00480.00 x 270.00476.00 x 266.002.3mmLong side

Product Specification:

Interface Type:USB or RS232
Screen Ratio16:9
MaterialGlass + Film or Film + Film
CertificatesCE, FCC, RoHS
Input methodFinger or touch pen
Position accuracy1.15~2.5mm
Operating VoltageDC ≤ 10V
Operating current5~25mA
Response timeLess than 10ms
Touch action force20~100g
Operating temperature-10°C~60°C
Storage temperature-20°C~70°C
Surface hardness3H
Working environmentUnder sunlight, indoor and outdoor
Isolation resistance≥20MΩ DC 25V
X.Y resistance100Ω~1000Ω according to the size
The number of hits≥1,000,000/point
Warranty1 year
Support SystemsWindows 2000/Windows XP/Win 7/ Win 8/Windows NT/Linux/Mac


4 Wire Resistive touchscreen is an outstanding high quality product, suitable for low cost solution. Suitable for
GPS, medical, Light industrial ,Pos,Portable sport devices, Access control terminals, Portable
medical devices, LCD and LED touch monitors,All-In-One ,Home appliances and other fields.

Packing and Shipping:

Competitive Advantage:

4 Wire Resistive touch screen is the product of choice for manufacturers because it can easily produce high resolution of 4096 x 4096 or higher. There are several advantages of this technology. Resistive touchscreens are low cost as compared to their ‘active’ counterparts.It can be produced to support multi-touch output. Moreover, a stylus or any pointed object can be utilized to operate such touchscreens.
technology principle:
The 4 Wire Resitive touchscreen consists of a glass layer with a conductive coating on top and a polyester top sheet with a conductive coating on the bottom. The conductive surfaces are held apart by "spacer dots", usually glass beads that are silk-screened onto the coated glass.
When a person presses on the top sheet, its conductive side comes in contact with the conductive side of the glass, effectively closing a circuit (this is called pressure sensing). The voltage at the point of contact is read from a wire connected to the top sheet.It can be touched by finger, gloved finger, leather or stylus pen.It is inherently of many advantages such as high accuracy, quick response, drift-free, stable and long durability for a life time of 1,000,000 times finger touches.

About us:

Shenzhen GreenTouch Technology Co., Ltd. is a professional manufacturer of product.Our company specializes in R&D, manufacture and marketing of high-grade touch screen and value-added touch machine. Our company has our own brand—GreenTouch and provides customers with touch products including IR touch screen, four-wire touch screen, five-wire touch screen,various touch screen monitors and touch all in one PC TV.

Product Tags:

4 wire touch screen


4 wire resistive touchscreen

Quality 21.5 Inch Digitizer Resistive Touch Panel Overlay Kit Anti Oil And Anti Water for sale

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