Working principle
1. There is a ceramic sheet in the sensor, please handle it with care;
2. When using a steel rod, do not directly use the telescopic rod to insert it directly into the ground; it should be as shown in the figure below: (Remove the telescopic rod, connect it with a steel rod, and hold the sensor for cutting the ground) The telescopic rod is only suitable for hard ground. To move the sensor, it does not have the cutting force capacity.
3. The whole machine is not waterproof design, please do not immerse the instrument in water or use it in thunderstorm days;
4. When the device is not in use, please place it in a cool and dry place to charge at least once a month;
5. After the device has been placed for a long time, it must be fully charged before it can be used;
6. It is strictly forbidden to use in flammable and explosive environments.
