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

Decent!

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.

After I bought my first solid wood guitar, I started researching guitar care. The most noteworthy thing I found was the importance of making sure your humidity is not too low or too high, which can destroy even the highest end of guitars over time. I had no earthly idea what the humidity was in my house so I purchased these cheap hygrometers. It’s been 6+ months and the battery’s are fine on both, and the two read the exact same number side-by side, so they get the job done. Come to find out my humidity is in the optimum range pretty much year round, but it gave me peace of mind that I wasn’t letting my expensive instrument degrade over time.

I got a 2 pack of these because my incubator was not displaying the correct humidity. I read all the hit-or-miss reviews and decided to risk it. Yeah, that was a mistake. On one hand, these are closer to the truth than the incubator (which still reads 20% humidity, obviously wrong). On the other hand, the temperatures are wayyyy off. That is pretty dangerous in an egg incubator. I used my instant read thermometer to compare because I was confused why, after two hours, they were still getting drastically different readings. I’m glad I did because it showed that my incubator was NOT running cold (like I thought it was, after using the sensor on the left for a few days), and was actually hotter than it should’ve been. I put this second sensor in to be sure of the temperature before making adjustments, and that’s when I discovered they are radically off. I find this strange because when they sat at my room temperature they displayed properly, but in the incubator they are inconsistent. I don’t have $20 for better sensors, but I’m mad I even wasted $6 on these. Save your money.

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.

I have 4 of these and they all work great. They all are within like 1 degree accuracy of each other. I use them for my cigars. The batteries died on one and I didnt know these had replaceable batteries. So I went and bought new batteries. Its a tough time changing them. Well the thing doesnt work now. Sometimes it will have power to it but as soon as I put the battery cover back on, nothing. So instead of replacing batteries, considering the price, Ill just buy another one and maybe Ill be able to change the batteries on my other units.

I grow plants in a tent, and have to check the humidity levels. These are a great value, but they dont last very long. One lasts, about the time of each grow to harvest, so I have to buy a new pair, about once per year, if I do two harvests per year, but these dont cost very much, so I think thats fine The downside is the adhesive tape, barely stays on, so be careful where you put it, or use another adhesive. it also makes it near impossible to change the battery, but these dont last long, so that isnt much of an issue The display is really easy to read, and its very accurate. Thats why I dont mind replacing them every year. These are cheap, but the value of accuracy, is paramount when growing things in a tent

Works amazing. Helped a TON with not having to guess the % my humidity was at.

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!

Does what it says on the tin. Simple, easy to read, and reasonably accurate.