 air |  mud |  water |  sand | ||||||||||||
River, mud, sand, stone, sea, cement, wood wetlands are different media.
Parameters are different from Soil - water - sand - stone and different medium to generate different magnetic field.
| media sensitivity adjustment is the effective solution to hunting small nuggets
sensitivity stepless adjustment
switch button on the control board: effective optimal detection results.
It can hunting needle and metal grain ball dia. 0.2 inch ( 5 mm)
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