Are you a stickler for accuracy? Then you'll love this affordably-priced digital hygrometer-thermometer with its own calibration knob feature. When used with a Humidipak 'One-Step Calibration Kit,' you can turn the knob to fine-tune the hygrometer, ensuring your cigars are kept at the right RH.
I ve had this hygrometer for almost a year and it has been extremely reliable. Just be sure that if you have to calibrate it, adjust the knob while it is still in the ziploc bag. The process is very easy and I d recommend it to anyone
Exactly what I was looking for, easy to use, nice backup for the humi.
I orderd 2 of these upon delivery i activated 1 it was about 3 percent high with salt test easy to adjust and works well. A few weeks later actavated 2nd upon calabration test had to fully adjust to the negative limit called costumer serv. Christina was very helpful and shiped me a new one no prob.Sent in the defective one the new one spot on rite out of the box. Alls good return service was exelent.