Using this digital magnetic sensor is a breeze. First, connect it using the high - quality connector and the provided digital cable. Make sure the supply voltage is within the 3.3V to 5V range. Once connected, the sensor will start detecting magnetic objects nearby. You can easily tell the status through the digital output and the on - board indicator LED. When it comes to installation, use the standard assembling structure with the 5mm center - distance between the two 3mm mounting holes. Remember to handle the sensor gently to avoid any damage to the immersion gold surface. To keep it in good condition, store it in a dry and clean place. If you need more detailed information, refer to the Wiki Doc and Schematic.