Leuze
PRK5B/2X-M8
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6.5m with Reflector (TK(S) 100x100, Red LED, 645nm, NPN Light Switching (Dark Switching by Reversing Polarity), M8 Male 4-Pin Connector, 11 x 32.4 x 20mm (WHL), ECOLAB, IP67, 5B Series