OBT300-18GK40-E0

Detection range: 10 ... 300 mm, Light source: LED, Light type: modulated visible red light, Signal output: 1 NPN output, short-circuit protected, reverse polarity protected, open collector, Switching type: Q - Pin4: NPN normally open / light-on, Connection: 2 m fixed cable, Operating voltage: 10 ... 30 V DC, Ambient temperature: -40 ... 60 °C (-40 ... 140 °F)