Operating range: 0 ... 4 m in teach mode 0 ... 5.2 m with switch position 'N', light transmitter: LED, light type: red, alternating light, 660 nm, signal output: 2 push-pull outputs, antivalent, short-circuit proof, reverse polarity protected, connection: with metal plug M9, 5-pin, operating voltage: 10 ... 30 V DC, ambient temperature: -40 ... 60 °C (-40 ... 140 °F)