As an added convenience, the Cylinder, Threaded - M12 package includes it. Temperatures of -40°C~85°C are ideal for proximity sensors. Pins 4 are present on this electronic component. To maximize the efficiency of proximity sensors, it is recommended that the supply voltage be set to 24V. It is possible to operate proximity sensors at -40°C. A proximity sensor cannot operate at a temperature higher than 85°C. If the rate is 400Hz, then the proximity sensors will function. Reed switches work well with proximity sensors when their internal contacts pass 200mA current. DC circuits can be operated with a voltage of 55V without damaging the proximity sensors. In a DC circuit, proximity sensors should not be operating at a current below 10V, otherwise they will be dangerous.