Remote Monitoring & Real-time Data Logging: Wifi thermometer enables real-time monitoring. Preset temperature and humidity values in "Scene"; works with Tuya Smart, Smart Life, Amazon Alexa, Google Home. Historical data stored for 2 years. Smart Link: Automate home devices when environment changes (e.g., AC on if temp >35°C, humidifier on if humidity <20% RH). Voice Control: Check temperature/humidity via Alexa/Google Assistant. Share monitoring with family members with one click. Precise Measurement: High precision sensor with temperature range -20°C to 60°C, humidity 0% RH to 100% RH; accuracy ±1°C (temp), ±5% RH (humidity). Updates every 2 minutes. Mini Size: Measures 71 x 25 x 20mm, space-saving and portable. Suitable for potted plants, humidors, reptile vivariums, etc. Battery life up to 1 year with new batteries. Color: as shown in the picture.