With the Cylinder, Threaded - M12 package, it is included for your convenience. When the operating temperature is -25°C~70°C, proximity sensors can function well. The supply voltage of proximity sensors should be set to 24V for maximum efficiency. To ensure that proximity sensors function properly, the rate should be 2.5kHz. For the proximity sensors to work properly, the reed switch's internal contacts should pass 10mA current.