The D4C-1220 is a NPN-type DC 2-wire inductive proximity switch manufactured by Omron. It has a detecting distance of 12 mm and a PNP-type DC 3-wire output. It has a range of supply voltage between 12-24 VDC and a maximum load current of 100 mA. The switch operates in a temperature range of -25 to 55 degrees Celsius and is cULus approved. This switch is ideal for applications that require non-contact detection and precise position sensing.