All Posts Tagged Tag: ‘salt water test’

In order to show readers that consumer hygrometers are imprecise instruments, we put two Boveda 69′s (accurate to +/- 1%) in a Humidor Bag with six hygrometers with brand new batteries for two days. Take a look at the results. This batch of popular hygrometers have a 17% reliability rate.  And without a dial or …