ThermoPro Hygrometer Thermometer for House TP350, Bluetooth Room Indoor Greenhouse Thermometer Monitor Up to 260FT, Backlit Humidity Meter Temperature Sensor with 2-Year Data Export, 2 Pack

Purchased for my "broom closet" Easy to read, easy setup. Nice to be able to check status by not opening the door.

These hygrometers are fantastic! Battery life is very long. Not sure how long, exactly; I bought these months ago and the battery still hasn't run out, even though I connect to them all the time with bluetooth. The ThermoPro app is wonderful and it allows you to see the entire history of humidity and temperature on the device. The bluetooth connects from as far away as 30 feet and the data downloads to the app very quickly, in a matter of seconds.

UPDATE. ThermoPro responded after a week of back-and-forth emails and agreed to replace the two units I purchased under a warranty claim. Hopefully the replacements will work better. Giving them 4 stars for taking action.

I wanted to be able to check my humidity, I have a steam humidifier but old thermostats. These did the trick and then some. They were easy to set up as well.

I have used these for years and the Bluetooth option is new to me, but I love it! Since I live in a house with multiple levels, I can leave one upstairs and see on my phone if I need to turn on the air conditioner to cool the upstairs before going to bed or not without actually running up and down the stairs, which I have a hard time doing now. They work great they last for quite a while and I will definitely be replacing others if they go with the new Bluetooth version. I sometimes keep groceries in the garage in the cool weather rather than in the refrigerator and having one out there would let me know if the garage temperatures get too freezing where I need to take food in so it doesn’t freeze also. I can think of so many reasons to use these. The two I bought I think are only going to be the start. They also have a lighted display, but you have to touch them to get it to light up and it does take a minute after you do, but that makes so much easier to read. For the price I think they are well worth it.