It is included with the Cylinder, Threaded - M18 package as a convenience to you. Operating temperatures of -20°C~60°C can be suitable for proximity sensors.
UA18ESD03AKTI Features
UA18 Series Operating Temperature: -20°C~60°C Sensing Distance: 1.575 ~ 11.811 (40mm ~ 300mm) Voltage - Supply: 10V~30V Package / Case: Cylinder, Threaded - M18 Moisture Sensitivity Level (MSL): Not Applicable
UA18ESD03AKTI Applications
There are a lot of Carlo Gavazzi Inc. UA18ESD03AKTI Proximity Sensors applications.