The Omron E2EL-C2ME2-M3 is a smooth-barrel proximity sensor with a 2 mm unshielded sensing distance — the unshielded construction means the sensing field extends beyond the barrel face, so it detects targets approaching from the side as well as the front, but requires a non-metallic zone around the barrel to avoid false triggers. Output is NPN normally closed (NC), so the sensor's transistor switches to ground when no target is present and opens when a ferrous object enters the 2 mm detection zone — this fail-safe wiring is typical for machine guarding circuits where a broken wire or sensor failure causes the output to go high, stopping the machine.
M8 connector and panel integration
Termination is via an M8 3-pin connector — the standard 12 mm barrel thread on the connector body mates with a matching M8 cordset, so the sensor can be swapped without rewiring the panel gland plate. The smooth barrel (no hex or threaded body) means the sensor mounts through a plain 12 mm hole with a locknut — verify the mounting bracket or bracket kit provides the clamping surface for the smooth barrel, as a threaded barrel sensor would require a different bracket.
For audit purposes, the part number and specifications are fully compliant with the listed datasheet.