Smart Temperature & Humidity Monitoring: Requires Tuya hub. Add hub in Smart Life/Tuya app, then connect the sensor. Monitor real-time data anytime, anywhere via app. App Alerts & Smart Linkage: Set custom temperature/humidity ranges. Receive notifications when exceeded. Trigger smart scenes (e.g., turn on/off AC) based on conditions. Third-Party Voice Control: Compatible with Alexa and Google Assistant. Ask voice commands to check temperature/humidity. Data Storage & Export: Automatically uploads data to app. View historical trends and export data with clear graphs. Accurate Measurement & Low Power: Equipped with high-precision sensor (temperature: ±0.3°C, humidity: ±5%RH). Low-power microprocessor for long standby. Battery not included. Product Size: 40*13mm. Note: Manual measurement, allow 1-3cm error due to light and display. Color may vary, please refer to actual item received. Color: as shown in the picture.