Humidity Meter Indoor Thermometer 6-Pack Mini Digital Thermometer Hygrometer Indoor Temperature Humidity Meters Gauge LCD Display Fahrenheit (℉) for Humidors, Greenhouse, Reptile Tank, Cellar, Closet

Six of these devices all agree with each other to within less than 1% humidity and 1 degree (F) in temperature. Pretty amazing! Users might wish to know that these are designed to be panel-mounted, though they work fine as free standing units.

All six of these are within 1 % RH and 1 degree of each other. I've tried other brands of these and they haven't been very accurate because they read different from each other, leaving me to distrust them - someone is lying! But these act right, and they are easy to read. I hope the batteries hold up. It's cheaper to buy a new set than replace those little batteries...

Works decent.. it can be a little off at times but primarily mostly right or accurate.. satisfied

I haven't had these long, but so far they are fantastic and doing exactly what I need them to do. I needed to figure out if specific places in my home were the right conditions for a few different plants. I got these to make it easy. Their small size allows them to go anywhere without taking up space. I jabe compared them with another Thermometer i know is accurate. The accuracy of these thermometers is spot on. I am guessing the humidity level is also spot on, but I dont have the ability to compare it with something elsw, so I can only guess it's right since temp is right. The magnet strength is great as they haven't moved a mm. I haven't had them long enough to comment on their durability. I will update at a later point on that. The price is right, if I need more I will definitely buy again.

4 of the units worked. 1 works but the display doesn't work correctly unless I squeeze the device. 1 didn't work at all, even after removing the batteries and putting them back.We really only need 3, so, not a big deal.

Awesome for the price you won't find better bang for buck....only thing is they differ 1-3 humidity between each other.

Works great, I have them scattered throughout my place and it’s been fun seeing the differences in temps. The humidity part works great as well.

5 displays F.1 displays Celsius.Varies by over a degree between the 6 displays.Humidity tends to vary between 2 to 3%Definitely not accurate, will sort of work for our needs, well 5 may, the Celsius unit is unusable for our project.Will probably return.