Goabroa Mini Hygrometer Thermometer Digital Indoor Humidity Gauge Monitor with Temperature Meter Sensor Fahrenheit (℉)

Does what it’s supposed to do what more can you ask for. . Love that it’s small and comes with extra batteries. Will def be ordering another one for second humidor.

A little smaller than expected but the numbers are still very easy to read and works great. Glad I ordered this and higher RH boveda packs, now my humidor is right on the money.

Got a few. They're cheap but work with my incubator well for quail. Sometimes readings are off so I just go by what majority read

It comes with extra batteries great feature

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Not a fan of this. The temperature gauge works ok but the humidity gauge is way off. Compared this to a friend of mines very expensive humidor and it was way off. It reads a good 15-20% too low.

I got this to keep in the case with a mandolin. It's not an expensive instrument, so I'm not rabid about accuracy. I don't have anything to check it against, but if it's within a couple of percentage points, that's all I need. And I've no reason think it's less accurate than that. It comes to a reading pretty quickly. First time I checked it I learned that I was probably overdoing humidification a bit. Good thing to find out. I give accuracy 4 out of 5 only because I don't know.The size is good for keeping in the case of a small instrument like a mandolin, violin, or ukulele. I haven't had it long enough to be able to speak to battery life. It came with batteries installed, and two extra ones - a nice touch, unless it's indicative of short battery life. Time will tell. I give battery life 4 out of 5 because I don't know yet.The display is easy to read. The readout shows both temperature and humidity, with humidity the most prominent, which is what I want in this case (if you'll pardon the expression). The temperature readout is in Fahrenheit. The box indicates that it's a Fahrenheit sensor, so no changing it Celsius. At the price, I wouldn't really expect that. Because it's not explicitly sold as a musical instrument case hygrometer, it's significantly less expensive than those that are. I'll probably be buying another one.

These used to be accurate right out of the box. Now using a Boveda calibration kit I have 7 of them with varying readings of anything except what the kit is. Seller no longer replies to messages. Cannot recommend these for cigar humidors.