Safety light curtain, transmitter-receiver pair, operating voltage 20.4.27.6 VDC, max. range 12000 mm, robust housing, protection class IP67, diagnostic display for status and error display, monitoring field height L: 350 mm, optical alignment aid, no blind zone, range: 0.1...8 m, resolution: 23 mm, operating voltage: 24 VDC, no restart lock, safety light curtain type 4 according to IEC 61496-1 & 61496-2, category 4 Ple according to EN ISO 13849-1, SIL 3 according to IEC 61508 & SIL 3 CL3 according to IEC 62061, shock and vibration resistant according to IEC 61496-1