Effective detection range: 0 ... 4 m, Light source: LED, Light type: modulated visible red light , 660 nm, Signal output: 1 PNP output, short circuit protected, reverse polarity protected, open collector, Switching type: light/dark on electrically switchable, Connection: 2 m fixed cable, Operating voltage: 10 ... 30 V DC , class 2, Ambient temperature: 25 ... 55 DegreesC ( 13 ... 131 DegreesF)