This $10 desk gadget solved my humidity problem better than any smart home device I own

There’s a whole sea of cool smart home gadgets you can buy, but for me, one of the most essential is a thermometer and hygrometer combo (also known as a thermo-hygrometer). It’s a simple device that tracks temperature and humidity in my room. Despite its simplicity, this cheap little gadget has become a mainstay on my desk—and here’s why.