The TL-W5MC1 is a flat inductive Proximity Sensor with DC 3-wire NPN normally open output. It is used for detecting ferrous metal. It provides surge suppress and load short-circuit protection. The body is made of ABS plastic. It features rugged directly onto metal or low profile plastic housing. It is ready to use prewired with 2m length cable and mounting bracket included with TL-W3M sensors.