Originally Posted by T.G

Hydrometer (with a "d") tests the specific gravity of a fluid - for example, the bulb tester with the floating balls to check your automotive coolant mixture or one for testing. Sometimes they show lab grade versions of them in a quick flash as part of a wine or beer company commercial (I think I've seen them used in some Sam Adams and EJ Gallo commercials). It really wouldn't be much use to a cigar humidor unless it was filled with water.

A hygrometer (with a "g") measures the relative humidity.




I already have one of those. It's called an active humidifier. Some of the companies that already manufacture them: Cigar Oasis, Hydra, Humi-Care, Habitat Monitor, Bob Stabell's Set-n-Forget, etc.

They can be had for about $60 and up depending on the manufacturer IIRC.




It's working now, your original post had a truncated link. Thanks.