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 has large detect 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, search metals that hid in underground, it can also be used for army of mine-sweeper. The detecting range is always longer than 30cm and the device can be store with the temperature ranging from -28 ℃ to 65 ℃, but the operating temperature is 10 ℃ to 60 ℃. So there is no necessary to worry about the temperature condition.
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Detection Range:≥ 30cm(for a RMB one YUAN Coin or for a US quarter)