my home made PI detector will catch very well a football size target at 2 meters easily in mineralized soil like i have in my country ....
i have check these day for replace the battery a good made detector very good electronic design and 600Ma punch pulse at 1200 pps very good to encounter your bronze relic see :
http://www.lorenzmetaldetectors.co.u...pmax/index.php
but high price

trade mark, I am very familiar with him. My recommendation is to use one.


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