With the Cylinder, Threaded - M30 package, it is included for your convenience. At temperatures of -25°C~70°C, proximity sensors work well. The pins on this electronic component are 3. To achieve maximum efficiency, it is recommended that proximity sensors have their supply voltage set to 300V. If you wish to ensure that the proximity sensors are operating properly, the rate should be 30Hz. It's important that the reed switch's internal contacts pass 500mA so the proximity sensors work.