How does the electronic dragon finder sound?

The sound principle of electronic dragon finder is to use the sensitivity of human body to express this subtle and exquisite induction through the reaction of stick. According to relevant information, the sounding principle of the dragon ruler is to use the sensitivity of the human body to release this subtle and exquisite induction through the reaction, swing and rotation of the stick, and transform it into a visible and regular signal. Electronic dragon finder is also called dragon finder, that is, dragon finder. Many dragon hunters are also known as the rulers of the earth and gas, and the neutral name is the probe, which has a history of 5000 years in China and the West.