Operating range: 0 ... 4 m, light transmitter: LED, light type: red, alternating light, signal output: 1 PNP output, short-circuit proof, reverse polarity protected, open collector, circuit type: the circuit type of the sensor can be switched. The delivery state is: Q - Pin4: PNP output / dark switching L/D-On - Pin2: Low-active input, connection: device plug M12 x 1, 4-pin, operating voltage: 10 ... 30 V DC, ambient temperature: -40 ... 60 °C (-40 ... 140 °F)