To make it easier for you, this Sensor is included with the Cylinder, Threaded - M18 package. When the operating temperature is -20°C~60°C, proximity sensors are able to function properly. If you wish to ensure that the proximity sensors are operating properly, the rate should be 100Hz. To make the proximity sensors work properly, the internal contacts of the reed switch must pass 100mA. Suitable for Bulk package, this proximity sensor measures close to the surface.