Review on 🌡️ Exo Terra Terrarium Hygrometer by Anthony Cornelius

They seem perfect. I dry the plant matter in mason jars and use Boved 62% packaging. I have 4 of them and all 4 are 62% dead. The great thing is that they fit snugly in the jar and because I use them in clear jars these little things fit snugly and I can control the humidity without that to open glass. They come with a round foam sticker that can be stuck to the back of the device, but if you pull out the small circle in the middle you can use this double-sided sticker to stick it to the inside of the glass panel. For my purpose they are perfect.