Quote Originally Posted by Hugh Jorgan
Neuro is correct, you need to make sure to do a calibration test on the hygrometers to get an accurate sense of their accuracy. The Boveda works great, or you can do the standard salt test.
They recommend against doing the salt test with digital hygometers as the salty air inside the ziploc can corrode the electronic circuitry...I blew out one digital that way...use the Boveda test...much safer...