WL170-N420
Photoelectric retro-reflective sensor, Rectangular Housing, 0.1 - 0.6 m, Visible red light, LED Light source, 10 - 30 VDC, 10 %, 30 mA, NPN output, Light dark switching, Selectable via L D control cable, 0.7 ms, Connector M8, 4-pin, Stainless steel, Stainless steel ABS, Plastic, PC, IP67