It's included in Cylinder, Threaded - M18 so you can find it easily. When the operating temperature is -25°C~70°C TA, proximity sensors will work well.
ICB18L50F12PC Features
ICB Series Operating Temperature: -25°C~70°C TA Sensing Distance: 0.472 (12mm) Voltage - Supply: 10V~36V Response Frequency: 1.5kHz Package / Case: Cylinder, Threaded - M18 Moisture Sensitivity Level (MSL): Not Applicable
ICB18L50F12PC Applications
There are a lot of Carlo Gavazzi Inc. ICB18L50F12PC Proximity Sensors applications.