M18 Flush Inductive proximity sensor
BPP series Diameter 12mm
M30 Non-Flush Inductive Proximity Sensor – Analog Output 0-10V/4-20mA, 15mm Max Range, DC 10-30V
M30 Capacitive Proximity Switch 15/20mm | AC/DC, NPN/PNP Sensor
TL-N5M series
M12 Magnetic switch sensor