We have included it with the Cylinder, Threaded - M12 package in order to make your life easier. If the proximity sensors are operated at a temperature of -25°C~70°C, they will perform well. The pin count on this electronic component is 4. To achieve maximum efficiency, proximity sensors should be powered by 30V. The proximity sensors work best when the reed switch's internal contacts pass 200mA current. There is a maximum voltage of 30V that can be applied to proximity sensors without damaging them in a DC circuit. There should be no current flowing in the DC circuit below the value of 10V, otherwise, there will be a risk of damage to the proximity sensors.