Well after several years of using those units filled with little beads that go from. orange to green when wet. Taking it out plugging it in to an outlet for 24 hours to dry the beads, I finally decided to go with a PEET unit.
So far I have zero regrets and should have done it much sooner. My internal digital monitor does not fluctuate, like it did with the beads. It is silent out of the way, and I'm sure it will protect my firearms much longer than the beads would have done.
Thanks Liberty for the suggestion, money well spent.
Regards,
Bill T.
Portland, Oregon