High Precision Sensor: The WiFi temperature monitor uses an advanced Swiss-made Sensirion sensor that quickly refreshes data every 2 seconds. Temperature accuracy: 0.36F/0.2C; Humidity accuracy: 1.8%RH.WiFi Remote Monitoring: Connect this remote temperature monitor to a 2.4GHz WiFi, you can view temp and humidity anytime anywhere on the app. Free data storage and export for up to 2 years.Long Battery Life: The built-in 2000mAh rechargeable battery the temperature and humidity sensor can work continuously for 12 months after a full charge. Longer battery life makes the indoor thermometer for room temperature more environmentally friendly and convenient. Perfect for bedroom, wine cellars, basements, etc.Multifunctional WiFi Thermometer Hygrometer: It's a temperature and humidity monitor with a comfort color bar, but also displays time, date, and week, and supports weather forecast and environmental assessment for colds.Large & Easy to Read Display: This WiFi temperature sensor has an ultra-big electronic ink display screen of 3.71 inches; Features high contrast, ultra-wide viewing angle, and is easy to read.Real-Time Weather and Forecast: The smart weather station will automatically sync weather data, get real-time weather information and check tomorrow's weather forecast at any time.