Hassle-free LCD Display: It offers real-time temperature/humidity readings and max/min records on LCD screen. 3-level comfort indicators-DRY/COMFORT/WET keep you aware of home situation with just a glance. High Accuracy: Built-in Swiss-made thermometer hygrometer sensor, it provides high precise monitoring. The temperature is accurate to ±0.5°F while humidity is ±3%RH. Up to 2s responsive speed always shows you the latest readings. Up to 164ft Remote Range: Bluetooth-enabled feature allows you to remotely monitor temperature/humidity on Govee Home app within 50m/164ft (no obstacles). Smart Notification Alert: Alert notification will be sent to your phone once temperature or humidity is out of preset range. Intelligent function enables you to adjust situation of your wine cellar, greenhouse or other places in time. Free Data Storage: It features 20-day on-board data storage. You are able to view recent temperature and humidity records. Curve graph diasplying brings you a clear data-changing track. You can export latest 2 months data to CSV format at any time.