It is included with the Cylinder, Threaded - M18 package as a convenience to you. A temperature of -20°C~60°C is a suitable operating temperature for proximity sensors.
UA18ESD03AKM1TI 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
UA18ESD03AKM1TI Applications
There are a lot of Carlo Gavazzi Inc. UA18ESD03AKM1TI Proximity Sensors applications.