Fisher Impulse

Great water detector!

Domenico in Conversano (BA) ITALY -
I've two Fisher Impulse, 8" and 10" that I use in water when diving for jewelery; it is very easy to use, it respond very fast at the target and it is really sturdy.
The batteries autonomy is incredibly long and then, primary thing, it go down very deep.
When a new Impulse with autotune and sensible to chains?

Sep 26, 2008

8 Yes
6 No

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Fisher Impulse

Vlad in CT -
This is my first Fisher detector. When I decided to get this detector it was because I heard it had good depth.

When my wife and I go out detecting, it's usually Friday till Sunday, and the ability of Fisher to work on 8 AA batteries for 6 months is outstanding, plus to change them is simple. Some detectors you have to plug in every night to get a hunt out of them.

It's a nonmotion detector, which I like. I would not recommend this unit for a beginner water-hunter because unlike other detectors, you must have three arms to operate this unit.
One for your scoop, one for holding the detector, and the other for continually adjusting the detector "sensitivity" knob.

Using it at the beginning was hard and the threshold was annoying.
It took me some time to get used to it. It is the same in fresh and salt water. As soon as you take a step deeper, the threshold changes so you have to walk in a straight line parallel to the shore. It works in wet sand but you get better depth in the water.

I would suggest to the manufacturer that the sensitivity knob should either be made a bit tighter cause even a light touch will change the sensitivity. I had to take the knob off and wrap a rubberband around the pin.

Overall I have had very good luck with the Impulse.
I would estimate the depth on a medium size gold ring to be about 18 to 24 inches. I have dug some pretty deep holes.


If Fisher could make the threshold stable, with the same depth performance and the same price tag, I 'll be the first in line.

Apr 13, 2002

109 Yes
7 No

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