Review on 🌡️ CHIVENIDO Wireless Indoor Outdoor Thermometer, Mini Hygrometer for Car, Greenhouse, Baby Room, Freezer - Battery-Free Hanging Hygrometer, 2" Diameter (Golden) by Joshua Garris

I thought it would be perfect to put behind the front door so I can see the temp/humidity at a glance. I had a larger one that could only be read by the interior lights but it was blown away and smashed. This item is the perfect size, 4 inches, with a vintage pocket watch aesthetic. The loop also makes it more secure when hanging from a nail. An unexpected problem is that the face of the thermometer is medium gray instead of white. The result is very low contrast for easy reading. The thermometer is basically unreadable in all but the strongest sunlight. If you look at the stock photo in the listing you can see that the face is quite dark and not white. It's actually darker than the photo shows. I didn't expect these issues to be able to read the thermometer's black and white face. That being said, the thermometer and humidity sensors are accurate and can be calibrated with a small flathead screwdriver. Unfortunately, this article is not suitable for my purpose.