Relative humidity advice please

[Powderfinger]

Results are after 12+ hours:

Radio Shack stand alone unit (no remote) = 66%

Ge weather station 5805ws6 (with remote) = 39%


My conclusion : you can't trust any of these things unless they can be calibrated.

Also I was told by the owner of Heartfelt Industries that salt tests in his opinion can vary as much as 6% depending on the type of salt and the amount of water used in the slurry.

He suggests using a Boveda Calibration Kit or a Humidipak Kit.

I have ordered a HygroSet II Digital Hygrometer With Calibration Feature and a humidipak kit.

I will report back with additional results after I calibrate the Hygroset and put the Radio Shack unit in the Humidipak. This should give a comparison to the salt test also.

Rich