Photoelectric sensors, W4, WTB4SL-3P2261, Sensing range max.: 25 mm ... 300 mm, Functional principle: Photoelectric proximity sensor, Functional principle detail: Background suppression, Switching output: PNP, Switching mode: Light/dark switching, Connection type: Male connector M8, 4-pin, Light source: Laser, Type of light: Visible red light, Laser class: 1, Housing material: Novodur, Adjustment: Potentiometer, Housing: Rectangular