1. Power supply: DC12V
2. Signal frequency: 7KHZ
3. Audio frequency: 400HZ
4. Sensitivity: small plate 25-30cm (USD 25sent), large plate 35-40cm (USD 25sent)
5. Maximum detection depth: small plate about 3M, large plate about 5M
6. Power supply: 8 AA batteries (not included)
7. Note: The maximum detection depth of this detector is 60 x 60 x 1cm aluminum plate

Features:
1. With dual probes, small probe 3 meters, large probe 5 meters
2. Large detection depth, high resolution, accurate positioning, and equipped with a ground balance system
3. It can eliminate the interference of ground signals (i.e. mineralization reaction) and only select the signals of metal targets, so as to accurately search for metal objects underground
4. Widely used to check metal foreign bodies in raw materials, check underground pipelines and lines; archaeology, prospecting, gold panning, treasure hunting; help people find metals and gold and silver treasures buried underground
5. Using sound alarm and instrument display, the detection depth has a great relationship with the area, shape and weight of the metal being detected
6. Can accurately distinguish non-ferrous metals and ferrous metals
7. Can detect gold, silver, copper, iron, tin and other metals

8. Can penetrate the soil, ceramics, rocks, plastics, concrete, wood and other materials covering it.