🌡️ 12-Pack Mini Digital Electronic Temperature Humidity Meters Gauge - Indoor Thermometer Hygrometer with LCD Display in Fahrenheit (℉) for Humidors, Greenhouse, Garden, Cellar, Fridge, Closet - Multicolored Review

After I put it to the test, I found this thermometer hygrometer to be inaccurate and inconsistent. While the device is easy to use, the readings often fluctuate by several degrees and percentages. The only positive aspect of this product is that it is compact and doesn't take up much space. Unfortunately, its unreliability makes it a waste of money.

I live in southern Arizona it is very dry here, I bought these to control the humidity in my musical instrument cases. I got the hygrometers today and put them all on the kitchen counter to acclimatize and after 4 hours they were all reading 27 or 28% humidity while my AcuRite hygrometers show me 16% humidity. I'll return them as soon as possible. On a scale of 1 to 10 (10 being better) I would rate them as absolute crap.

So out of 126 readings were the same and the other 6 were +/- one point off. when I received them the batteries were already in the devices and there was no battery tab on the devices. To recap, the devices have been on since someone put batteries in them and how long they've been in Amazon's warehouse. etc so I don't know how long they will last before I have to replace the batteries.