WHAB’s 1924 Brick Schoolhouse RDWC

That’s a good question, one I looked at a while. I bought a flock of those little humidity/temperature instruments and wanted to check.

You can do a simple one point calibration involving a salt paste.

Some of the hygrometers they use for cigar humidors can be calibrated and that’s how they do it.

Cheers
G

3 Likes