You will find it included in the Cylinder package to make it easier for you. It is possible for proximity sensors to operate effectively at temperatures below -40°C~85°C. In order to maximize the efficiency of proximity sensors, it is recommended that the supply voltage be set to 30V. For the proximity sensors to perform their function, the rate should be 3kHz. ldeally, the reed switch's internal contacts should pass 100mA to make the proximity sensors work properly.