Sensing range: 20 ... 100 mm, light transmitter: LED, light type: red, alternating light, signal output: 2 NPN outputs, independent short-circuit proof, reverse polarity protected, transistor with open collector, switching type: the switching type of the sensor is switchable. The delivery state is: light switching, connection: fixed cable 2 m, operating voltage: 10 ... 30 V DC, ambient temperature: -30 ... 60 °C (-22 ... 140 °F)