The Latest Generation JW Fishers Magnetometer
The PROTON 4 is a fourth generation proton magnetometer from JW Fishers. It is a top performing microprocessor driven marine magnetometer detection system. With a one gamma sensitivity, it has the maximum usable sensitivity for a towed magnetometer. A two second cycle time gives a strong return signal and is fast enough to detect even small iron/steel targets. The PROTON 4 features a triaxial noise-cancelling sensor that allows omnidirectional towing without heading error or dead zone.
Easy To Read Backlit Display
The system is fully digitized and displays it’s output on an easy to read 5 digit LCD that is backlit for night operations. The optional built-in printer creates a permanent record of the mag readouts. The gamma reading is printed out on each cycle and, with input from a GPS receiver, the target’s position is also printed out. An alarm informs the operator when the readout changes. An RS232 output and software package are also available. The Fish has excellent hydrodyamic characteristics moving smoothly through the water at tow speeds up to 10 knots. A 2-3 knot tow speed is recommended for small targets. With the optional Altimeter, precise distance off the bottom can be maintained.
Capable of Deep Water Towing
For deep water towing, the Fish is towed behind a downrigger. The Fish can be towed at almost any speed, but should be towed slow to locate small targets or when towing the Fish deep. A sensitivity switch allows easy pinpointing of targets. Modular construction allows easy field repair, should it ever be necessary.
Standard Factory Items Included
- Warranty Certificate
- Detailed Instruction Manual
|Approximate Weight||53 Pounds (without cable)|
|Search Coil Size||No|
|Headphone Jack Size||No|
|Includes Bonus Items||No|
|Search Coil Shape||No|
|Search Coil Type||No|
|Visual Identification||LCD Screen|
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Our Truly Free Shipping Promotion Details
No Hidden Fees! Free ground shipping applies to all orders over $99.95 shipped within the continental United States. You will not find any fine print or catches to this offer. We do not charge handling fees, per accessory fees or any of the other fees that you may find when shopping elsewhere. Order today and save time, gas and money with this limited time promotion.
Returns and Exchanges Made Insanely Easy!
Since 1983 we have offered a return policy that is quite simple. We want you to be 100% satisfied with your purchase. Here are the details in black and white:
Returns & Exchanges:
Within 14 days of receipt of your on line order, you may return or exchange any hobby item in original condition. All products must be unused, unassembled in the original packaging and with the manufacturer's original blank warranty form and instruction manual. Simply call us for a return authorization code and our special returns address before shipping any product back for a refund, store credit or exchange. Refunds are issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.
Shipping, handling and insurance fees of $20 for your original ground shipment will be deducted from your refund for non-defective returns. Return shipping and insurance on non-defective merchandise is your responsibility.
Security, Industrial, Makro Deep Seeking Detectors, JW Fishers Underwater Search & Recovery, DRS Detectors and special order items are not returnable.