i was looking around the net today and came across a way to accurately calibrate a hygrometer by putting a tsp. of salt into a shot glass with a few drops of water to moisten not to dissolve then sealing the meter and the glass in a zip lock the salt will maintain a 75% reading. i was kinda skeptical about the one i bought i was kinda on the cheap side but turns out it works fine............... just thought i would share
Yeah I have heard of that before.
This works for most lower end hygrometers that allow for calibration. Nothing like a remote, or wired self calibrating unit!
~Malabar :mellow:
yep, thats it. i larned that one from P.W... this is what i use they work great.. you can pick it up at pet store or at, http://www.exo-terra.com/en/products/digital_hygrometer.php
(http://i551.photobucket.com/albums/ii475/fattrout/HPIM1734.jpg)