Sapper 3B - Underground Deep Search Metal Detector - Treasure Hunter - Range 3 to 4 Meter - Detects Gold, Silver ( Ferrous / Non- Ferrous ) Separately (Model: 404)
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One of the world's best selling gold metal detector with 3 - 4 meters detection depths for large objects . It is expected that you are aware that 4 meter range is for large objects , typically more than 10 inches in diameter.
Power Supply - DC 12 V . Transmitting Frequency - 6.99 KHz. Signal Frequency - 400Hz. Weight - 4.5Kg. Applicable Temperature : -10 - 40°C
Maximum Depth of Detection - 5M(big coil) , 2.5 M (small coil) / 2 Mode switch positions - ground balance position and discrimination position / Distinguish between ferrous metals (iron, steel) and non ferrous metals (gold, silver, copper, aluminium