BALDR Digital Mini Thermometer/ Hygrometer Mini Wireless w/humidity gauge

works well. small enough to take in any room.

I'm using it in an an incubator for some chicken eggs. It works great . I wish it was in Fahrenheit, instead of Celsius. But other than that, I am very pleased with it.

Love it had different brightnesses

I was looking for something like this for a while with humidity reading as well as the temp. It came down to this and another type. It ships ready to go. Just pull the battery tab to activate and it's ready. The numerals and readout was pretty good. It has 2 touch buttons on the back. 1 for min and max record. The other one is for Celsius and Fahrenheit. It also has a nifty fold-down, foldout arm made for hanging and converts to a mini stand as well. A tiny magnet is molded into that hanger/stand also. I have a problem with it reverting back to Celsius . I think the coin battery is not that tight and it gets jarred and goes back to the Celsius readout. I have it clipped to a power cable for my cordless phone charger in the Jeep. From what I can tell by pressing the back button on it to get back the *F reading the battery is not tight and will cycle if you press too hard. I have another one and its stationary so it's constant on the readings. I can't tell how it will fare over time. I hope it holds up.