Miniature photoelectric sensors, Functional principle : Through-beam photoelectric sensor, Dimensions (W x H x D) : 7.7 mm x 21.8 mm x 13.5 mm, Housing design (light emission) : Rectangular, Sensing range max. : 0 m ... 2.5 m, Sensing range : 0 m ... 2 m, Type of light : Visible red light, Light source : PinPoint LED, Light spot size (distance) : diameter 65 mm (1,500 mm), Wave length : 640 nm, Adjustment : None, Supply voltage UB: 10 V DC ... 30 V DC