E2B-M30KN20-M1-B1 is an inductive proximity sensor manufactured by Omron. It is a 2 wire, AC/DC type, with a sensing range of 30mm and a rated output of NPN normally open. The supply voltage is 10-30VDC, and the maximum switching current is 200mA. The body size is M30 and the operating temperature range is -25°C to 55°C.