Hygrometer

Totolink X18 2-Pack WiFi Router AX1800 Wi-Fi 6 Dual Band MU-MIMO 3x RJ45 1000Mb/s WPA3 Govee Wi-Fi Thermo-Hygrometer

The Govee Wi-Fi Thermo-Hygrometer is a wireless thermometer and hygrometer that measures temperature and humidity. It can be controlled through a mobile app and sends real-time data to your phone.

Aranet Radon Plus Home Sensor - Bluetooth Radon Detector with Thermometer and Hygrometer, Measures 0-4000 Bq/m³, Temperature and Humidity Display