It is included with the Cylinder, Threaded - M18 package as a convenience to you. A temperature of -25°C~70°C is suitable for the operation of the proximity sensors. There are 2 pins on this electronic component. If you want to get the most out of proximity sensors, you should set the supply voltage to 30V. There is a minimum operating temperature for proximity sensors of -25°C. In order to operate, proximity sensors must have an operating temperature below 70°C. To ensure that the proximity sensor works, the rate should be 25Hz. It's important that the reed switch's internal contacts pass 300mA so the proximity sensors work.