Proxitron – $179.95 each
Compact analogue inductive sensor. 24VDC supply, 0-10V output, sn=20mm. The sensor is a PG36 thread and has an RS485 serial interface
PIL – $249.95 each
Ultrasonic Sensor, sn=200-2000mm, PNP NO-NC output. Cylindical 18mm body with an M12 5pin connector.
Wenglor – $19.95 each
Inductive sensor, 2 wire 20-250vac, NO output, sensing distance is 10mm. It has a mini (7/8”) 3p connector. This is a 30mm sensor with an overall length of 81mm.