underground metal detector

Quantity Order:

Origin:

China

Quantity:

500000

Pack. & Delivery:

4sets/ctn

While operating the old detector, it would be affected inevitably by the ground: the signal of the instrument will change as the distance between the head and the ground changes. If the earth surface is uneven, the signal will change more greatly. Operator will hear that the signal sounds all over: thus he cannot make sure of the accurate location of the target. It is called effect of mineralization.

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