Made a few upgrades...
First I switched from the weak Cigar Oasis XL Plus to a much heartier humidifier canister from RonC for the Accumonitor. The much larger 60 mm fan provides great pull and throws the moisture around, however, I upgraded the .26a fan it came with to a .36a fan. It's beast now. I used the 30mm fan from the Cigar Oasis as a secondary fan mounted higher in the humidor. I've only had it in the humidor for about a week and the wick has already developed mold which is disappointing. Have others had a better experience?
I had been using an unregulated 9v DC power supply to run the fans and the wihygro but the wihygro was getting warm since it only needed 5v and this was skewing the temp and humidity readings. I've now switched to a dual output power supply, 12v for the fans and 5 for the wihygro and it's running much cooler now. I also relocated the sensor closer to the rear wall, higher up, and further from the main unit. I'm excited to see how these changes reflect on Twitter.
Finally with RonC's expert advice I played with my wihygro code and settled on humidity differential of 3% The fans come on when humidity is <64.5% and turn off when humidity reaches 67.5%. This keeps the fans running sparingly and lets the 1 lbs of beads I have do their work -- absorb when the fans are running and release when they're off until it's dry enough for the fans to come back on.
Little transistor control circuit used to control the fans. The loose black wire is a signal wire going to the wihgro.
Relocated sensor
Happy cigars.
Thanks for looking.