As a convenience to you, it has been included in package Cylinder, Threaded - M18. It is possible for proximity sensors to function well at -25°C~70°C. For maximum efficiency, the proximity sensors should be supplied with a voltage of 300V. It is recommended that the rate be set to 15Hz in order to ensure that the proximity sensor switches operate properly. In order for proximity sensors to work properly, the reed switch's internal contacts should pass 200mA current.