Showing 1 through 3 of 3 reviews
One of these came with a new (2nd) humidor I purchased and it worked great and easy to calibrate both my old and new hygrometers separately or together.
Jason in SC July 31, 2011
I have 3 hydrometers and each read differently. This item sure confirmed the actual humidity.
Tim in Live Oak, FL June 16, 2011
It's a small price to pay for jnsurance.I have about ten electronic hygrometers that I have to constantly recalibrate.(Rarely for analog.)Without this item I wouldn't know how far off they are.
mike in Des moines January 21, 2011