Further information for Pepperl + Fuchs PF Retro reflective sensor - ML100-55-3704
Operating range: 0 ... 5 m, light transmitter: LED, light type: red, alternating light, signal output: 1 PNP output, short-circuit proof, reverse polarity protected, open collector, switching type: light switching, connection: fixed cable 265 mm with Stocko plug, 4-pin, operating voltage: 10 ... 30 V DC, ambient temperature: -30 ... 60 °C (-22 ... 140 °F)