Acu-Rite 00613 Digital Hygrometer from Wal-Mart

Originally Posted by T.G

A lot of times, stuff like this has a trim-pot(s) inside on the PCB that you can tweak to adjust the humidity (and/or temprature).

Now that would have been awesome, but just took one apart and showed it to the wife, a supervisor in a PCB factory and it does not have one. If it does its been potted, a glob in the middle of the board. But she thinks that may not be it either.

Chas