12 Pack Mini Digital Thermometer Hygrometer Indoor Temperature and Humidity Gauge Meter Monitor Fahrenheit (℉) for Humidor,Greenhouse,Reptile Tank,Home,Jars

I use these in storage containers for 3d printing filament, they are pretty accurate.

Pulled from the box and placed in location needing monitored. Been using for approximately 1 month without issue, very responsive and accurate perfect for my needs. Recommend and would purchase again!

They work really well and are pretty accurate once you let them sit out for a bit. Took that picture about an hour after opening them. I've been using them now over a few weeks now and they do the job and are dead on when they are in a container or small space. I tested them against my other two hygrometers I use and know are right. I suggest let them sit out for a few then remove the batteries and restart fresh. Once I did that they all leveled out and went right were they should. I used a bovada 62% and they all worked like they should and held on point. Also all the temps read spot on as well. All in all I'd say I got a great pack and got my money's worth. Would totally buy again and would recommend em.

Put in a sealed container and all were totally accurate and had the exact same reading.

They came in the package already powered up. I got them out and was amazed how well they all agreed. Checked them with some calibrated equipment and they are extremely accurate. I suppose they are primarily hygrometers as the humidity is display in a much large font than the temp. But both are easy enough to read and I only bought them for the humidity function. I put them in mason jars with tobacco I am fermenting.

I purchased a six pack because one of my incubators is acting up. Lining them up around 1 room they all are fairly close but once I put 3 in one incubator plus the one on the incubator that is used as correct they are all off even after 4 hours. Inserted the other 3 in another incubator and same. Curious if anyone uses these in an egg incubator. Don’t want my lil babies to die.

I won’t write a thesis, but suffice it to say these little babies are fantastic. I love my cigars and have many tupperdors and sealed bags with bovedas inside, but never had anything to monitor the Temperature and RH in them until now.These mini hygrometers are extremely accurate (as you can see from my picture after having them out for a day), they are very easy to read, and they don’t require any pre-calibration. Top it off with the insanely good price for 12 of them at once, and I’m not sure this deal can be beat. I cant testify to their durability obviously since they’re brand new, but if they go wonky in a year I’d be just fine with how great and affordable they’re working now.You can see in the picture that they are all almost identical in their readings. All within 1° and 1% RH of each other. 11 out of 12 of them read the same exact RH, and the only unit of the 12 that is 1% higher at 53% is one that I dropped on the floor when opening the box. And it still works within 1% and 1°. These are fantastic little buggers.If you need an affordable option to monitor your cigars, BUY THESE!

Per item, these are ridiculously cheap, but do the job reasonably well.

Only 1 of the 12 units reads drastically different than the others. The remaining 11 all read extremely close to each other, but true accuracy has yet to be evaluated. Once I can compare these to a commercial sensor I will update my review.

A good product for a reasonable place. Downside, no off switch to preserve battery life when not in use. A pain to have to remove and replace x2 watch batteries to shut off when not in use. Other than that, a good product. Recommend!

You want your herb to be fresh add a humidity Boveda pack and monitor the humidity at 62%, these Digital Thermometer Hygrometer, are great and are accurate.When you see the herb drops humidity these Digital Thermometer Hygrometer will show you the humidity level.Don't let your herbs dry out, these are a must for the curing process. I usually cure for a month but I have done 3 months and all Hygrometers worked great. You can change the battery also when required.

3rd time purchasing & never have had a dud.

I thought these weren't working, so I put five of them in the fridge, don't know why, and they quickly dropped to 52%. That was useful information and I realized my home is humid so I went to work drying it out and have managed, so far, to remove 10% of the moisture.Never paid much attention to the humidity. As long as my skin isn't drying out, I am happy. I can use these to indicate when it's time to start up the atomizer or open a window.