Inductive proximity sensors, IQY, switching distance Sn: 4 mm, installation in metal: non-flush, cuboid shape (W x H x D): 8 mm x 40 mm x 8 mm, electrical design: DC 3-wire, switching output: PNP, switching function: normally open, connection type: cable with M8 plug, 3-pin, with knurled screw connection, 0.1 m