Operating range: 0 ... 30 m, light transmitter: LED, light type: red, alternating light, 630 nm, signal output: 2 push-pull outputs, short-circuit proof, reverse polarity protected, switching type: dark switching, connection: device plug M12 x 1, 4-pin, operating voltage: 10 ... 30 V DC, ambient temperature: -30 ... 55 °C (-22 ... 131 °F)