Compact light barriers, W250-2, WL250-2R1531, switching distance max.: 0.01 m ... 15 m, 0.01 m ... 12 m, sensor principle: reflection light barrier, detection principle: double lens, switching output: relay, switching type: light switching, connection type: cable, 5-wire, 2 m, light transmitter: LED, setting: potentiometer, included in delivery: reflector P250, mounting bracket BEF-W250