To detect whether there is metal around, we can use the metal detector to help us detect. Once the instrument detects the metal, it will start the alarm. When working, we need to pay attention to the following points:

1. Remove any watches, rings, and other jewelry you are wearing and place the detector on a wooden or plastic table.

2. Adjust the Angle of the detection plate so that its surface is parallel to the ceiling. Do not test metal detectors on the floor of a building. Because most building floors have metals in them, they can interfere with the objects under test or completely confuse the signal.

3. Move the sample of the material to be tested about 5cm away from the probe plate. Note: the probe disk cannot detect stationary objects, because you are not using the probe to search and scan, so you must move the object under test.

4. Find a metal-free area outside.

5. Put the sample you want to explore on the ground. If precious metals such as gold are used for testing, mark the place area for easy finding later. Do not place the sample on tall grasses or tree guards.

6. Hold the detector so that the detector plate is parallel to 2.5-5cm on the ground. The metal detector slowly moves the detector plate over the area where the sample is placed to search side to side (moving left and right).

In order not to affect the normal work of the metal detector, we need to pay attention to the above points when we are working. Do a good job of testing the metal. These points of attention are done, so it is helpful for the use and operation of the instrument.