time2011/01/24
?? Hand held metal detector sensitive to the special appearance of the surface that is easy to operate. Better than the ring-type hand-probe sensor. Let's us see hand held metal detector of the low noise.
? If the hand held metal detector to issue more low noise, and the probe remains at the top of the sound after the sound will gradually disappear, we can determine that it is a small metal, such as belt buckle, zipper.
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