I’m obsessed with these! I have 8 of them scattered about. I watch the temp of my backyard (far more accurate than a weather app), my garage, my refrigerator, freezer, basement, my keg fridge, and I even took one camping to see how cold it was in the tent! I wish there was a submersible model to track pool and river temp and maybe even bathtub temp before getting in. The trend graphs and data logging feature is really great to see temperature cycles. I can’t stop finding uses for them - maybe I’ll keep one in my cooler to track whether the ice is still doing its job!

Works well and is easy to use if you have the matter hub

SwitchBot Indoor/Outdoor Thermo-Hygrometer