Effective detection range: 0 ... 3.5 m, Light source: LED, Light type: modulated visible red light , 626 nm, Signal output: 2 push pull (4 in 1)outputs, short circuit protected, reverse polarity protected, overvoltage protected, Switching type: light/dark on, Connection: 150 mm PVC cable with 4 pin, M12 connector, Operating voltage: 10 ... 30 V DC , class 2, Ambient temperature: 20 ... 55 DegreesC ( 4 ... 131 DegreesF)