WiFi-operated smart humidity and temperature sensor The Shelly H&T has built-in modules for Humidity and Temperature and is the world’s first Wi-Fi Humidity & Temperature sensor that can operate for over a year powered by only 4 AA batteries. Enhanced with a low power consumption e-ink display - perfect for children's bedrooms and a stylish addition to any living room Type-C USB slot available(for powered connection) Works with 4 x 1.5 V AA (LR) batteries (not included) Low battery consumption (Up to 1-year bettery life) Features up to 1 year of free data storage for analysis and statistics with the Shelly Cloud up Bluetooth inclusion Wall mountable - comes with 3M mounting tape and a kick stand Compatible with Alexa, Google Home, Android, Home Assistant and more. No hub is required and this will work with the free Shelly Cloud app.