As an added convenience, the Cylinder, Threaded - M12 package includes it. Temperatures of -25°C~70°C are ideal for proximity sensors. To maximize the efficiency of proximity sensors, it is recommended that the supply voltage be set to 30V. If the rate is 1.2kHz, then the proximity sensors will function. DC circuits can be operated with a voltage of 30V 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.