a of optical switch devices, with delay, broadening, external synchronization, anti-interference, high reliability, working for regional stability and self-diagnosis of intelligent features. Small size, multi-function, , high precision, fast response, detection distance and anti-light, electricity, magnetic interference capability advantages. Separate Amplifier type of structure Specular reflection type detection Voltage :AC 250V / DC12-24V Output Current: 3A Ambient temperature: -0-75 () Size: 5x5x2cm Material: ABS + metal Package contains: 1 set of photoelectric switch (including screws) Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.