The EI1805NPOSL1 is an M18 stainless steel inductive proximity sensor with NPN NO configuration, featuring a 5mm sensing range and flush mount design. It operates with a supply voltage of 10-40VDC, delivering a maximum output current of 200mA and switching frequency of 500Hz. The sensor has an extended body design with M12 plug connection, rated for -25C to +70C operating temperature and IP67 protection.