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Adult and child metal detector, high precision, with 10 inch waterproof detection disk, with memory function

SKU: GW50.0067

Q
How deep is the detection depth?
A
The search coil of the MD3040 metal detector is 20% larger than the ordinary detector, and can detect 8.7 inches at most (for 25 cents), which is deeper than other ordinary detectors. 
Q
What type of battery is used in conjunction with the detector?
A
2 9V batteries (not included). 
Q
Does it have ground balancing function?
A
Yes, the MD3040 metal detector has the ground balance function, which is preset by the manufacturer without adjustment. 
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