E2E-S05S12-MC-B1 Omron Proximity sensor 
 
Small-diameter Proximity Sensor, Cylinder type (with screw), M5, Shielded, Sensing distance: 1.2 mm, DC 3-wire, PNP open-collector output, NO, M8 connector models
Sensing head size
M5
Type
Cylinder type (with screw), Shielded
Power source
DC Three-wires models
Sensing distance
1.2 mm ±10%
Setting distance
0 to 0.84 mm
Operation mode
NO