Help with fisher Gemini 3

[captain1965]

Does anyone here know if the Fisher Gemini 3 could give me a false reading on fractured basalt? I balanced or tuned my unit and only in one spot I get pegged readings on low sensitivity (between 2 and 3). The area is made-up of mainly dirt and small basalt rocks. Can small "hot rocks" give me a false reading with a 2 box detector? If anyone here is accomplished with this unit could PM me I will give them my phone # to further explain my results.

thanks Jon

 

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[Keppy]

You would get more answers if you drop down to brands and put this in FISHER RESEARCH LABS...

 

[captain1965]

thank you

 

[Keppy]

i never used a Gemini 3 and it looks like not to many here has had any experience with the Gemini either.