Mini Hygrometer Thermometer 2PCS Mini Digital Humidity Gauge, AikTryee Hygrometer Indoor Humidity Monitor, Temperature Humidity Gauge Meter for Humidors, Greenhouse, Garden, Cellar, Closet, Etc

It showed up working and I was thrilled with the no fuss, having to do nothing with it for it to work. It came with stickies to hang on my terrarium and with extra batteries! I have had it for a few weeks and it works beautifully! Great purchase!

Works great for a while but then the screen went out so I tried changing the batteries and that didn’t fix it so I just bought them again and the new ones screen went out too so I might not be purchasing again but while it worked it worked great

I ordered these digital Hygrometers thinking they would be somewhat accurate within a percentage point or so. I decided to do the salt test to see if they would read at 75%. As you can see from the photo after 24 hours the salt test proved that these are both inaccurate. One read 73% (not too bad) the other read 70% (way off). You do get what you pay for. I was hoping to be able to re calibrate them after I found out what the actual humidity level it was reading but according to the company all you do is take out the batteries and put them back in again! I did do this before I administered the test. Please be aware that you should do a salt test to see how far these are off. I wouldnt necessarily recommend these since in some cases knowing the humidity within 1% can be extremely important for some people. You should be able to calibrate them as well.

These are accurate and easy to read, but the batteries in both units died within a few days of one another. Batteries lasted only a couple months. When they worked, they were great to monitor the humidity for a hammered dulcimer and non-laminated back guitar.

Even came with batteries! And more batteries for later. Very nice units.

Works as described. Mine were about 5 degrees off on temperature and humidity. Battery life was meh at about 6 months of 24/7 operation. Decent product for the price. Simple to use and easy to read display.

I bought this so time ago and it still works! I can read it perfectly and i believe it gives me a better accuracy than other that i have bought! Will update if anything changes.

I use these in my snake enclosures to monitor tamps and humidity they work perfectly for what I needed. Great little product

Works exactly how I would expect it to for the price. It came with batteries in the units. Those were dead on arrival. However they did provide extra for each unit. Display is clear and simple, not the most accurate but perfect my use case.

I use them in my humidor and they work great as a supplement to my analog one. They are always within a degree of each other so I am ok with the variance. They are so small so next I will add some velcro to the back and on the humidor so it can stay. I forsee alot of life from these and if not, they were cheap enough that I would buy again. Perfect for what they are made for.