Small light barriers, W12-2 Laser, max. switching distance: 0 m ... 80 m, sensor principle: through-beam light barrier, switching output: PNP, connection type: M12 connector, 4-pin, light transmitter: laser, setting: potentiometer, laser class: 2, included in delivery: 2 x clamp holder BEF-KH-W12, incl. screws