In order to make things easier for you, it's included in the Cylinder, Threaded - M18 package. It is possible to operate proximity sensors successfully at a temperature of -40°C~85°C. Maximum efficiency is achieved by setting proximity sensors' supply voltage to 240V. It is important for the rate to be 25Hz so that the proximity sensors will work. To work well, the reed switch's internal contacts should pass 300mA current.