White's Blue & Gray Pro. No tone

[vfrf2]

I just purchased a Blue & Gray Pro and it doesn't make a tone when I hit a target. I get tone on the battery check and when I turn it on. When ground balancing the tone stays the same no matter which way I try to adjust the GEB button. I have tried it in many settings and it sounds the same. I have tested it over a coin and the meter seems to be working OK. I've put new batteries in it and cleaned the contacts. Any help would be appreciated.

 

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[vfrf2]

Took it to Centreville Electronics here in Manassas. Cleaned battery terminals and it is fine.

 

[ticndig]

thats and oldie but goody . I dug hundreds of civil war relics with mine. in the winter dry air static will cause the meter needle to stick , carry a fabric dryer sheet with you to wipe the meter free of the static.