In the field of geography and Feng Shui, it is also known as the earth spirit ruler, the dragon-seeking rod, the dragon-detecting needle, etc. The English name is "DowsingRod", and the neutral name is called the detecting rod. It has a history of 5,000 years in China and the West. . It borrows the human body's magnetic field sensitivity to emit subtle and exquisite induction through the physical reaction of the stick, turning it into a visible signal, which can be used to find mineral veins, water sources, dig caves, measure geomantic omen, find people, and find people. Lost property, divination, prediction of good or bad luck, etc. Popularly used in the field of geographical Feng Shui, it is a must-have tool for Kanyu masters. This uses the sensitivity of the human body to release this subtle and delicate feeling through the reaction, swing, rotation, etc. of the stick, transforming it into a It becomes a visible and regular signal, from which people can get correct information and be able to engage in work such as finding people, finding objects, exploring water sources, mineral veins, historical sites, divination, etc., and it is extremely accurate.