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 structureSpecular reflection type detection Voltage :AC 250V / DC12-24VOutput Current: 3AAmbient temperature: -0-75 ()Size: 5x5x2cmMaterial: ABS + metalPackage contains:1 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.