Review on Accurately Monitor Temperatures With 4 Pack Classic Fridge Thermometers -30~30°C/-20~80°F by Irene Bra

Accurate reading, but fogs up in the freezer. My only true complaint is the hook doesn't allow it to hang from the shelf, so you have to set it on top. Other than that, it's perfect. Love that it's a two pack: one for the fridge and one for the freezer. Still compact enough to not take up space. It even fell on the floor (trying to hang it inside the freezer) and didn't break.