OBT40-R102-A0-V31

Detection range: 10 ... 40 mm, Light source: LED, Light type: modulated visible red light, Signal output: 2 NPN short-circuit protected, protected against reverse polarity, open collector, Switching type: Q - Pin4: NPN normally open / light-on /Q - Pin2: NPN normally closed / dark-on, Connection: M8 x 1 connector, 4-pin, Operating voltage: 10 ... 30 V DC, Ambient temperature: -40 ... 60 °C (-40 ... 140 °F)