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

I bought the Travel Humidor Plastic Pouches as well. I put one Hydrometer inside the Pouches and sealed it and the other one ( because I bought the Two Pack ) outside on my desk. The one on inside is working nicely and the one outside of the Pouch is measuring the Humidity exactly as my expensive Humidity/ Barometer that I have on my desk as well. Nice Little Unit.

I got these for the inside of my bearded dragons tank, and they adhere to the tank, easily or easily to read seem to be accurate

It’s the second time I’ve ordered some of these digital hydrometers and they really work great and I was not expecting to have the extra batteries which is a huge plus for me. It’s always hard for me to keep up with batteries and now I have some extra ones, keep up the great work

Purchased a set of two, used a Boveda One-step calibration kit over 24 hours to establish a baseline for both hygrometer readings: (1) Temp read 4 degrees low (displayed 69* to actual 73*); humidity read 3% high (displayed 78% to actual 75%) (2) Temp read 3 degrees low (displayed 70* to actual 73*); humidity read 4% high (displayed 79% to actual 75%) According to the product documentation Temperature measurement accuracy: ±2℉; Humidity measurement accuracy: ±5%RH. These systems were out of spec for temp and within spec for humidity. Im using these in clear plastic containers to store cigars while I reseason my humidors. As a rough guide they work fine, the display is clear and easily readable through the container wall. DONT rely on these as precision instruments though, pickup a more precise hygrometer for a long-term solution. (Xikar makes a nice one that can be calibrated)

Id buy it again because there are so many but I did have about 3 or 4 that didnt work. Some also dont match up.

I have 4 of these. Cant attest to the accuracy, but they all read within a % or two of each other.

The temperature seemed to be accurate as both indicated the same temperature, but the humidity readings varied by 2 +/- percentage points when sitting side by side. Still close enough for what I need. and a good price.

Ordered twice at different times, four pieces total. All placed in a sealed container at the same time. After twenty four hours- Relative humidity readings dead on with each other - 70%. Temperature readings within 0.4 degrees, three reading 73.0 degrees, and the fourth reading 73.4 degrees. Conventional thermometers included in the same container read 73.1 and 73.4 degrees. Thats pretty good accuracy/repeatability considering that the units cost less than $2.50 each. For all those complaining about accuracy/repeatability, what do you expect for less than $2.50 each. Youll be spending substantially more for units that use a more accurate sensor and are individually calibrated to give more accurate readings.

It is not accurate at ALL. Places it in the incubator with a govee just to see and while my incubator and govee showed 99.5 temp and 40% humidity, these showed 80 temp and 60% humidity on one and 82 temp and 70% humidity on the other. They were both placed right next to the govee in the same spot so should have read the same as govee or at LEAST read the same in both of them. They both read different from each other and not even close to the incubator or govee. Not worth it

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