IFM electronic IE5344 Inductive sensor; M8 x 1 / L = 37 mm; Sensing range 3 mm flush mountable; normally open; DC; PNP/NPN; 0.3 m PVC-Cable; M8 Connector; IP 67; 2-wire; 3-wire; Ambient temperature 0...60 °C; Switching frequency 1000 Hz