1. Wifi model does not need a gateway and can be directly connected with Tuya app or Smart Life app. 4. Real-time monitoring of temperature and humidity changes 2. Perceive the temperature and humidity of the interior to create a comfortable home living. 3.Low power consumption and long standby time 5. 30 days of historical data storage, Weight: 0.05952481074 pounds, Manufacturer: Faeymth