Sensing range: 20 ... 400 mm, light transmitter: LED, light type: red, alternating light, 660 nm, signal output: relay, 1 changeover contact, switching type: light/dark switching, switchable (one H/D switch is only in function when the other is in the 'dark switching' position.), connection: terminal compartment with 8 spring-loaded terminals for wire cross-section 0.5 ... 1.5 mm2, stripping 7.5 ... 8.5 mm, cable gland M16x1.5, operating voltage: 12 ... 240 V AC/DC, ambient temperature: -40 ... 60 °C (-40 ... 140 °F)