Miniature light barriers, W100 Laser, WL100L-E2131, switching distance max.: 0.08 m ... 12 m, sensor principle: reflection light barrier, detection principle: double lens, switching output: NPN, switching type: light/dark switching, connection type: connector M8, 3-pin, light transmitter: laser, setting: potentiometer, laser class: 1, included in delivery: stainless steel mounting bracket (1.4301/304) BEF-W100-A, reflector P250F