Quality Importers HygroSet, Rectangle Digital Hygrometer for Humidors, Black (DHYG-Rec)

works great and they can be calibrated. you will be hard pressed to find any that can be calibrated for that price of these

Accurate and easy to read! Simply device that does what it's supposed to. Good buy.

The issue is it needed to be calibrated just as the round one did. I just let them sit in a same space and the % off in RH needed 16 clicks CC there were only 10. So I moved it all the way CC and it then read low then moved the knob back until ti read the same as the round one I calibrated. The main issue is the set button , I pushed it and nothing happened then I used a tooth pick with the end broken off and it worked , sometimes the button would go it and come out on an angle so I had to move it just right then it was where it should be. They need to make the button a bit longer then this will not happen , unless I got one that was not made proper. I now reads no more than 1% higher than the calibrated one and the temp is most often the same. The round one set button just works well and never sticks.

It was a little tricky to calibrate, but if you follow the instructions, you can get it set up in just a few hours.Nice size for the top of the humidor. The display is large and easy to read in a glance.

Bought this a bit cheaper as refurbished, appearance was good, however it totally did not function even after recallibration. Not pleased plust cost extra to return.