🌡️ JEDEW 4-Pack Mini Digital Hygrometer Thermometer Gauge: Accurate Indoor Outdoor Temperature Humidity Meter for Greenhouse, Humidors, Incubators, and More! Review

Everyone had different RH levels in the same humidor. No option to adjust which is a real bummer. I will use it until I find a more accurate small hygrometer.

These are my favorite hydrometers for my incubator! I bought some that connect to my phone and I feel they are more accurate and easier to use and also a quick way to check temperature and humidity.

Overall I like the design/shape and size of these RH/Temp sensors but obviously there is a small area between the 4 thermometers and one of the 4 reads around a 5 -10% humidity lower than the rest.

It's not a "bad" product, just hard to read, it has a Fahrenheit scale for those of us Americans who NEVER know how to use European units, and they will all supplied extra batteries. The problem is that you have to look directly at it.

Ordered 4 packs of these hygrometers to monitor the moisture level of the 3D printer filament. Two out of four indicate a slightly higher humidity, ie I get three different readings from four hygrometers. But the difference is only 2-4% - enough for my specific application.

Two of these are kept in my 150 cigar humidor. One on the top and one on the bottom shelf. Both are usually within 1 percent moisture of each other. Also, the humidor cools down and I keep it at 66 degrees. Both hygrometers read just over 65. I've been using it for about a month. An added bonus was that my package also included extra batteries. You can easily switch between Fahrenheit and Celsius with the button on the back. I'm glad I bought!