Further information for Pepperl + Fuchs PF Reflection - RL31-8-2500-IR/59/73c/136
Sensing range: 0 ... 2500 mm adjustable, light transmitter: IRED, light type: infrared, alternating light, 850 nm, signal output: 2 push-pull outputs, short-circuit proof, reverse polarity protected, switching type: dark switching, connection: device plug M12 x 1, 4-pin, operating voltage: 10 ... 30 V DC, class 2, ambient temperature: -30 ... 55 °C (-22 ... 131 °F)