21.5" 4 Wire Resistive Touch Screen - Ito Film, >=80% Light Transmission, 3h Surface Hardness | Low Cost, Durable, Reliable, Responsive, Easy Install

Enriched by our vast industrial experience in importing trading and supplying of 21.5" 4 Wire Resistive Touch Screen in New Delhi, Delhi, India. Resistive touch screen is the preferred solution for low-cost applications. It consists of a conductive bottom layer (ITO Glass or Film) and a conductive top layer (ITO Film). The two layers are suspended by many very small spacer dots. When a certain point is touched, the top layer contacts the bottom layer and a voltage charged by the controller is applied to the bottom layer's electrodes. The coordinate X axis of the touch point can be detected by measuring the voltage value thru the top ITO layer and the coordinate Y axis of the touch point can be detected in the same way by changing voltage input to the top layer's electrodes. Product Details: Light Transmission : Greater than or equal 80 Scoring Life Expectancy : Greater than or equal 1.000.000 Storage Temperature : -20~+70 Less than or equal 90%RH Operating Temperature : -10~+60 Less than or equal 90%RH Construction : Film Insulation impedance : Greater than or equal 20M Ohm (25V DC) Linearity : Less than or equal 1.5 Size : 21.5" Tail : FPC Surface Hardness : 3H Operating Force : 10g~100g Working Voltage : 5.0V.Circuit gradeDC5V 1mA No noted size common difference : (-+)0.20