It is included with the package Cylinder, Threaded - M18 to simplify your life. It is possible for proximity sensors to function well at -25°C~70°C. A 2 pin electronic component is used here. To ensure that proximity sensors work properly, the rate should be set to 600Hz. For DC circuits, proximity sensors can handle voltages as high as 30V without causing damage. There shouldn't be a current lower than 10V in the DC circuit of proximity sensors.