10-Pack Mini Thermometer Hygrometer, Small Digital Electronic Temperature Humidity Meters Gauge Indoor LCD Display for Greenhouse, Garden, Cellar, Fridge, Mason Jar

Purchased these for our 3D printer and they work great! They fit nicely into the holder that we 3D printed and the display is easy to read. These were well worth the money we spent on them.

Bought these to put with my 3d print spools. Absolutely fantastic and I am really glad to be able to see the moisture at a glance. Easy to fit wherever. Just plop it in and you’re good to go!

Use for 3d filiment and they work as they should. Will buy again

These are not the most accurate humidity and temperature monitors. They only read as low as 10% RH, even if the actual RH is 2%. What is Good: You can change the temperature between C/F. This comes in handy, although again, accuracy is not great. These will give you a general idea where your temperature and humidity levels are. That is about it, but then again, you get what you pay for.

Been using these for about five months now. All of them seem to be accurate. Please note these only go down to 10%, which seems to be common for all of this style. If you need more accurate measurements below 10%, you will need to look somewhere else.

The only thing you need these to do is clearly display the humidity and temp. They don't. Every single one of these only shows 88. They barely display the number at all and viewed from any angle all you see are the 8's. It makes these useless. I've bought tons of these over the years and I've never had this problem except on this Rojuna product. Save your money.

I use these for my 3d printing cereal container, accurate +/- 10% or so

work great easy to see

Perfect for monitoring the moisture levels in your container for 3D filament. Pleased with the price and performance.

I don’t usually write reviews but I ordered 7 sets of 10 of these and one of the hygrometers didn’t work. I contacted the shop and they very promptly sent me a new box of 10. Amazing customer service and super product. Thank you so much!

Hard to read unless directly in front of you. I mounted this in the lid of a dehydrator for drying filament and it does nothing for me in that orientation. In applications where you can look at it directly, no problem. Just be aware.

A great deal for 10 units. Temperature & humidity great for jar storage DIY projects and greenhouses, Reliable and efficient. I recommend these to any serious gardener.

Worx