You could conveniently study the best hygrometers without the need of opening the humidor, preventing any potential for upsetting the interior local climate. In comparison with analogue meters, digital hygrometers are usually additional precise and much easier to study. So while choosing a Humidor for you, look for its hygrometer. https://livesoundblog.com/smart-storage-is-an-electric-humidor-the-right-choice-for-you/