Monitors and records indoor temperature, humidity and atmospheric pressure in real-time. Can be used with Aqara Home app through iOS or Android to view current and historical data, as well as receive notifications of changes in temperature, humidity or pressure compared with the pre-set value. Can also be set to trigger other smart accessories in the home. Works with - Matter - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App Temperature Range: -20-50°C Humidity Range: 0-100% Suitable for Indoor Usage OTA Update Support Data Logging Smart Hub Required Works with - Matter - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App Temperature Range: -20-50°C Humidity Range: 0-100% Suitable for Indoor Usage OTA Update Support Data Logging Smart Hub Required