2-Pack Mini Digital Hygrometer Gauge Thermometer – Indoor/Outdoor Temperature Humidity Meter for Humidifiers, Greenhouse, Reptile Plants, Humidors – LCD Monitor, Fahrenheit Display Review

I bought two of these for my cigar humidor. I've found them to have a 10% inaccuracy in humidity (I've compared them to a calibrated instrument). I know what I'm doing, I have a degree in chemistry and things like sensors and humidity have become second nature to me. I do not recommend buying these. I would ask for a refund but the price was so low it wasn't worth my time. I always have to remember that you get what you pay for.

I bought two of these units to keep my son's young bearded dragon Draggi at the right temperature for bathing and cooling down. I placed one on his log and the other where his skin was. Now I can see that the temperatures are correct for this, both devices work absolutely fine and display very similar temperature readings when in the same location so they appear to be accurate. Glue these blocks securely to the tank. Draggi is a very happy dragon.

It may take up to 45 minutes to accurately display the ambient temperature. I keep my house at 68° and my garage at 55°. Therefore I took all 4 of these devices back and forth several times as a test. They will eventually reach the right temperature, but it will take almost an hour to gradually reach it. So if you're trying to measure an environment where the temperature changes faster, this isn't ideal. If it's not a big deal then it's a good price.

I have several devices that I used to measure the temperature. I was hoping that these devices would come at least a little close to what these precision devices would do. The actual temperature in my bedroom is 71°F, the meter reads 75.5°F. My actual temperature in the basement is 66°F, the meter reads 72.1°F. Far from the advertised accuracy of +/- 2°F When testing I am not getting any usable temperature readings from this unit which I purchased from Revain.

I bought two of these to monitor humidity and temperature inside the incubator. Unfortunately, they never coordinated with each other or any other device. I tried recalibrating them by placing them outside in a well-ventilated area and removing, resealing, and replacing the batteries. Nothing worked - they still disagreed, even sat next to each other. The size was perfect and the screen easy to read, but what's the point if you can't trust the results? If you just want a general idea of your…

Delivery was on time, that's maybe the only plus. Otherwise garbage. As soon as I put the 1st in my tarantula's aviary, it showed 90% humidity, which was ridiculously high, so I added the 2nd to see if they matched. An hour later, one showed 89% humidity and the other 77%. Very disappointed, I am returning it while I am writing this review. EDIT: Unless they are in high humidity conditions, they appear to be accurate. I placed both indoors and they show the same temperature and humidity…

This is a great price. If you take the time to READ the specs, these devices perform better than advertised! My experience shows that the temperature difference between devices in the same environment is 3% and the humidity is less than 1%. The focus of the units I bought was on humidity, not temperature. The units have fast response times and display temperatures down to 1/10th of your chosen temperature type (F or C), they do not switch between modes. As stand alone units they work as…