This is a professional underground gold metal detector with the adoption of the latest technology and it represents a new generation of metal detector. This underground gold metal detector uses big coil and has large detecting area, high sensitivity and sonorous audio alert. It also has the function of recognize ferrous and non-ferrous metals. Except of being used in archaeology, searching metals that hide in underground, it can also be used for army of mine-sweeper. The detecting range is always longer than 30cm when the being detected objects are larger or the same of a RMB coin. Besides, the device can be stored with the temperature ranging from -28 ℃ to 65 ℃, and the operating temperature is 10 ℃ to 60 ℃. So there is no need to worry about the temperature condition.
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Detection Range:≥ 30cm(for a RMB one YUAN Coin or for a US quarter)