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Proton 4
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J. W. Fishers Proton 4 Magnetometer

Customer reviews see below


  • Powerful boat towed metal detector for ferrous metals such as iron and steel
  • High performance micro-processor driven system
  • One gamma sensitivity
  • 1500 foot detection range on each side (3000 feet total swath for a very large target)
  • LCD readout and target alarm
  • Performance does not change whether detecting through air, water, silt, sand, or solid coral  
    • Control Box
    • 18" search coil with 150 feet of cable
    • Tow Fish
  • Optional GPS interface, RS232 interface and software for data collection & storage-See below to order

    *Standard Shipping Surcharge: $400.00
    Not available for 3-Day, 2-Day or NextDay

with GPS interface, RS232 interface and software for data collection & storage Add $784.95

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