Photoelectric sensors, W4, WL4SLG-3P3432V, Sensing range max.: 0 m ... 4.5 m, Functional principle: Photoelectric retro-reflective sensor, Functional principle detail: Without reflector minimum distance (autocollimation/coaxial optics), Switching output: PNP, Switching mode: Light/dark switching, Connection type: Cable with M12 male connector, 4-pin, Light source: Laser, Type of light: Visible red light, Laser class: 1, Housing material: Stainless steel V4A (1.4404, 316L), Adjustment: Teach-in button, Housing: Rectangular