Small light barriers, W12G, max. switching distance: 0 m ... 4 m, sensor principle: reflection light barrier, detection principle: autocollimation, switching output: PNP, switching type: light/dark switching, connection type: M12 connector, 4-pin, light transmitter: PinPoint LED, setting: cable, teach-in button, communication interface: IO-Link, smart sensor: enhanced sensing (time stamp + debouncing), efficient communication, diagnostics, smart task