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Moisture meters are (not?) capacitance meters? or radio transceivers?
I don't mind if there's a man behind the curtain, I just want to know what he is capable of doing.
So on the one hand Im told that moisture meters for wood and FRP boats are :just: capacitance meters, of unspecified range. Including the Electrophysics ones.
But on the other hand I've seen comments that they are not capacitance meters, but rather they broadcast a small radio signal and look for the attenuation caused by mousture in the return signal path.
For all I know, either scheme might work. But I'm curious to know if anyone has "for sure" knowledge of what's done behind the curtain. And especially if anyone like Maine Sail, who has the meter and probably has a multimeter with capacitive scales on it as well, has ever compared the two, getting a result like "ell, the EP says :dry: when the cap meter says <50mfd and it says :wet: when the cap metere shows >200mfd, there are correlations.
I'd hate to waste money on an EP meter only to find my purpose built capacitance meters alreay could do the same job, and do it with digital numbers instead of waving a needle.
My iPhone S5 has a moisture meter built in, but I'm under NDA to Apple not to discuss it or use it until June 8th of next year, so that won't hel at all.
Anybody? Got the real skinny, or the two tools and an hour to do some compares?