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21.5''4 wire resistive touch screen

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unit price: negotiable
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period for delivery: Consignment Deadline Days
area: Beijing
Expiry date : Long Effective
last update: 2017-12-15 21:47
view count: 109
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Product details
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.

Interface Type: USB or RS232
Resolution 4096x4096
Screen Ratio 16:9
Material Glass + Film or Film + Film
Certificates CE, FCC, RoHS
Input method Finger or touch pen
Position accuracy 1.15~2.5mm
Operating Voltage DC ≤ 10V
Operating current 5~25mA
Response time Less than 10ms
Touch action force 20~100g
Operating temperature -10°C~60°C
Storage temperature -20°C~70°C
Surface hardness 3H
Working environment Under sunlight, indoor and outdoor
Transparency ≥80%
Isolation resistance ≥20MΩ DC 25V
X.Y resistance 100Ω~1000Ω according to the size
Linearity ≤1.5%
The number of hits ≥1,000,000/point
Warranty 1 year
Support Systems Windows 2000/Windows XP/Win 7/ Win 8/Windows NT/Linux/Mac
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