Photoelectric sensors, W4, WTB4S-3P2462V, Sensing range max.: 4 mm ... 500 mm, Functional principle: Photoelectric proximity sensor, Functional principle detail: Background suppression, Switching output: PNP, Switching mode: Light/dark switching, Connection type: Male connector M12, 4-pin, Light source: PinPoint LED, Type of light: Visible red light, Housing material: Stainless steel V4A (1.4404, 316L), Adjustment: Teach-in button, Housing: Rectangular