I've said this before - but this is just a reminder. I'll be breaking BOTL over time in order to get it into a far better place. Just be patient if you can't reach us! We'll be back
Consider the Western III. They are inexpensive and extremely accurate. I have tested a couple now, right out of the box with a calibration kit and they have been perfect.
Apparently hygros have a limited life expectancy. I have been using a Diamond Crown hygrometer for the last two years and it has been spot on. Now, all of a sudden, it is like 6% off. :dunno: