CONTRINEX DW-AD-303-M4 Switching Distance: 0.6 MM, Proximity Switch, Discontinued by Manufacturer, INDUCTIVE, Open for Flush MOUNTING: Amazon.com: Industrial & Scientific
Heschen Inductive Proximity Switch with Sensor LJ30A3-15-Z/BY Detector 15 mm 10-30VDC 200mA PNP NO (Normally Open) 3 Wire : Amazon.de: Business, Industry & Science