Description: "Features: This Xiaomi Aqara temperature humidity sensor can not only monitor the temperature, humidity and atmospheric pressure, but also make changes to the environment by sending a notification to your phone via the APP. Matching with other Xiaomi smart devices such as gateway remote control, smart outlet, versatile controller, etc. this sensor could help you create a smart home control system. What is more, this smart sensor could control the temperature and humidity changes by viewing the historical data Specifications Model:WSDCGQ11LM Wireless Protocol:Zigbee Battery:CR2032 Dimensions:36 36 9 mm (1.42 1.42 0.35 in.) Temperature Range and Precision:-20 50 C, 0.3 C Humidity Range and Precision:0 100% RH (no condensation), 3% Atmospheric Pressure Range and Precision:30 kPa 110 kPa, 0.12 kPa App:Apple Home app (iOS 10.3 or later), Aqara Home app (Android 5.0 or later, iOS 10.3 or later)" Specifications: Model:WSDCGQ11LM Wireless Protocol:Zigbee Battery:CR2032 Dimensions:36 36 9 mm (1.42 1.42 0.35 in.) Temperature Range and Precision:-20 50 C, 0.3 C Humidity Range and Precision:0 100% RH (no condensation), 3% Atmospheric Pressure Range and Precision:30 kPa 110 kPa, 0.12 kPa Package Included: Temperature and Humidity Sensor x 1, Sticker x 1, Quick Start Guide x 1