- 2 Pack Mini Hygrometer Thermometer Gauge Indoor/Outdoor Digital LCD Monitor Humidity Meter for 3D Printers Reptile Terrarium Humidor Jars Fahrenheit/Celsius(℉/℃) by DWEPTU

This is helpful as we have a gas stove to heat the house that is not controlled by a thermostat. It also helps us see when we need to run the humidifier because it is too dry in the house.

I’ve had these for about a year and the work great battery life is amazing haven’t changed them yet they just stick onto the surface where you want to put them using a 3m type of double sided tape setup is super easy just put it where you want it they are small enough that I put one in my fridge and it’s still going as well seems pretty accurate it might be off by 1 or 2 degrees but good quality and great price for what you are getting

Pretty accurate and very reasonably priced.

I like this one it works for my filament humidity purposes. I feel it works as expected and also this fits for the filament printed models inside the AMS2 Pro.

Very good quality

Pleased with these. Need to keep track of the humidity of 3D printer filament. These work well for me. mounted them in Printed holders. will be buying more. want t least one on each cabinet storage shelf.

They do what they say they're doing. I have one in my cigar humidor and one in my 3D printer filament container. Lets me know when I need to add water or add more desiccant

One worked well and the other was unable to display the humidity. Quick response from Amazon to replace.