You will find it included in the Cylinder, Threaded - M18 package to make it easier for you. It is possible for proximity sensors to function well at -25°C~70°C. A 4 pin electronic component is used here. It is recommended that the supply voltage of proximity sensors be set to 24V to achieve maximum efficiency. -25°C is the lowest operating temperature that can be reached by proximity sensors. Neither the proximity sensors nor their operating temperatures may exceed 70°C. It is important that the rate of the proximity sensor switch be set to 2kHz to ensure that it is properly functioning. It's important that the reed switch's internal contacts pass 10mA so the proximity sensors work.