Omron D40A Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, Cable

The D40 from Omron is a compact non-contact door switch with easy to see red/yellow LED status indicators. The actuator is smaller than the switch saving space, even when mounted with an L-bracket, the actuator's height will not hinder installation or operation. Mount from whichever side provides the easiest wiring path to enable mounting to all types of doors.

Easy-to-see 2 colour indicators
Mount from either side
Small actuator