Engineering suggestions require suitability checks for your installation.
1. Ferrous target state sensing
A machine may need a discrete input that indicates when a steel target moves away from a sensor face.
Potential use
The normally closed NPN output can provide a changing control signal as the target enters or leaves the 5 mm sensing zone; verify PLC input polarity and wiring.
5 mm sensing
NPN
Normally closed
IP67
2. Compact machine position detection
A fixture or conveyor may need to detect the position of a nearby metal component.
Potential use
Mount the unshielded rectangular sensor near a suitable ferrous target and set the gap within the 0 to 4 mm set distance.
Rectangular
2 m cable
10 to 30 VDC
Ferrous target