This device is mostly used for a surface digitizing, or as an edge finder and geometry measurement by CNC machines.

The sensor has sensitive switch, triggered by touching of the tip.

Power supply	5-12V — or — 17-24V
Switch type	NC – normally closed = output is active, when sensor is NOT triggered. — or — NO – normally openned = output active, when sensor is triggered.
Output type	NPN – switch to GND — or — PNP – switch to power supply
Cable length	1.5m