Further information for Pepperl + Fuchs PF elevator light grid 284796 - AL2109-P-1820/25/49/76a/143
Operating range: 0 ... 3500 mm, field height: 1800 mm, number of beams: 61 ... 135 (dynamic), beam spacing: 90 mm, light type: infrared, alternating light, 950 nm, signal output: 1 PNP and 1 NPN, short-circuit proof, switching type: light switching, connection: device plug M8 x 1, 4-pin, operating voltage: 11 ... 30 V DC, ambient temperature: -20 ... 60 °C (-4 ... 140 °F)