Small light barriers, W12, WTB12-3P2461S01, Device type: Light sensors and light barriers, Max. switching distance: 50 mm ... 800 mm, Sensor principle: Reflection light sensor, Detection principle: Background suppression, Switching output: PNP, Switching type: Light/dark switching, Connection type: M12 connector, 4-pin, Light transmitter: PinPoint LED, Light type: Visible red light, Housing material: Teflon-coated housing, Adjustment: Potentiometer, Special features: Switching distance limited to 700 mm +/- 100 mm, Switching distance preset: 200 mm