4 wire resistive touch screen:

4-wire touch screens are suitable for small or medium sized products such as HMI and hand-held systems. These panels utilize X+, X-, Y+ and Y- lead outs at the four edges of the screen. When contact is made, X/Y read-outs are then read by the controller and converted into the correct coordinates.

Features of SPE 4 wire touch products

Size: 3.5~15.6 inches.

Insurance: 1 year.

Operation Life: > 1Million times

Transmittance: > 82%

Operation temperature:-30~70℃

Storage temperature:-40~80℃

Surface hardness:3H

Surface coating: AG/AR

The principle for 4 wire resistive touch