Hand held underwater magnetometers

[Bubble]

Hi everybody,

I'd like to get some feedback from those of you who know anything of hand held underwater magnetometers (for divers).

Doing some researches on the net, I could find 2 models only:
- DiverMag1 from JW Fisher (http://www.jwfishers.com/)
- Dicovery Quantrosensing (http://www.quantrosensing.com/handheld.htm)

I'd like to know how efficient they are, how to use them etc. I know that some information is available from manufacturer's web site but I'd prefer field experience...

I'm interested in detecting (underwater) 1000kg of iron buried under 4 m of sand. What about underwater PI metal detectors with large coils? Would they be a possibility (which model?).

Thanks for your answers.

Bubble.

 

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[mad4wrecks]

I would definitely go with the Discovery model by Quantrosensing. On their website they list specifications and detecting range.

JW Fisher makes okay products but they are way overpriced. ($1500.00+ for their Pulse 8X detector!)

Motivation Inc (Mel Fisher's company) uses and promotes Quantrosensing products as well.

IMHO.