Aqara Temperature and Humidity Sensor T1 Your own mini weather station. Product Description: The Aqara Temperature and Humidity Sensor monitors and records indoor temperature, humidity, and atmospheric pressure in real-time. The app displays both current and historical data, and it can trigger other smart accessories to automate your home. Key Features: 2 Year Battery Life: A small battery can power the Temperature and Humidity Sensor for a solid 2 years or more. Data Logging: Real-time data is recorded in the cloud, allowing you to check historical values without subscription fees. Temperature and Humidity Notifications: The Aqara Home app can notify you in case the temperature, humidity, or pressure has reached a pre-set value. Multi-Ecosystem Support: After binding it to an Aqara hub, the sensor can be exposed to third-party platforms, such as Apple HomeKit, and Amazon Alexa. Aqara Home Automations: You can activate various scenes and automations using our range of smart home products. For instance, you can automatically turn on a bathroom exhaust fan using an Aqara Wall Switch when a rise in humidity is detected while you're taking a shower. Advanced Technology: The Aqara Temperature and Humidity Sensor features an industrial-grade sensor from the renowned company Sensirion, providing a humidity detection accuracy of ±3% and temperature detection accuracy of ±0.3°C. (NEW) OTA Update Support: Compared to the original sensors, the T1 series features OTA update support, enhancing their stability and functionality. Automation Capabilities: Turn On A Fan If It Gets Too Hot: IF Temperature exceeds preset amount, THEN the fan will turn on. Rest easy while staying cool. If the temperature exceeds a preset amount, using a smart plug with your fan plugged into, the Temperature and Humidity Sensor can trigger an automation to turn on the fan to keep you cool. (Requires: Temperature & Humidity Sensor T1 + Aqara Hub + Smart Plug) Specifications: Model: TH-S02D Wireless Protocol: Zigbee 3.0 Battery: CR2032 Dimensions: 36 × 36 × 9 mm Temperature Range and Precision: -20 °C ~ 50 °C, ±0.3 °C Humidity Range and Precision: 0 – 100% RH (non-condensing), ±3% Atmospheric Pressure Range and Precision: 30 kPa – 110 kPa, ±0.12 kPa Supports: Aqara Home, Apple HomeKit*, Amazon Alexa* *Requires Aqara Hub What's in the Box: Temperature and Humidity Sensor T1 x 1, Sticker x 1, User Manual x 1