Miniature light barriers, G6, GTB6-P4211, Device type: Light sensors and light barriers, Switching distance max.: 5 mm ... 250 mm, Sensor principle: Reflection light sensor, Detection principle: Background suppression, Switching output: PNP, Switching type: Light/dark switching, Connection type: Connector M8, 4-pin, Light transmitter: PinPoint LED, Light type: Visible red light, Housing material: ABS/PC, Adjustment: Potentiometer