Smart Alerts: Get notifications on your phone and hear an alarm on the base station if the temperature or humidity goes beyond your set range; you can also get a low-battery warning on your phone and adjust the base station alarm volume and sound | Highly Accurate: This Swiss-made sensor offers precise temperature readings of ±0.36°F (±0.2°C) between -4°F and 140°F (-20°C to 60°C), along with a relative humidity accuracy of ±2% between 0 and 99% | Comfort Indicator Icons: Get a quick idea of the current comfort level thanks to the clear icons displayed on the indoor thermometer; use the default settings or customize them as needed | Helpful App: Use the app to remotely monitor temperature and humidity 24/7; see maximum, minimum, and average temperature/humidity over time in a graph, and switch between temperature scales (°F/°C); you can also let up to 12 users to monitor your indoor environment simultaneously | Compatible with Alexa: Control the thermo-hygrometer via Alexa commands, such as asking, “Alexa, what’s the thermo-hygrometer humidity?” | Plant-Friendly: Use the X-Sense app to remotely view the dew point and VPD (vapor pressure deficit) taken by this hygrometer humidity meter and optimize growing conditions for your plants; 24/7 data and graphs help you better manage humidity and temperature levels | No Charge for Data Storage: Enjoy cloud storage at no cost; export the past year’s data with no subscription fee; if the internet cuts out, recent data is restored once it is back | Covers Entire Home: An open-air connection range up to 1,700 ft (500 m) ensures a stable connection between the base station and the Wi-Fi thermometer hygrometer, perfect for monitoring large units or multi-level homes | Easy-to-Read LCD: This indoor digital thermo-hygrometer has a large 2.7-inch LCD that gives you clear information on temperature, humidity, Wi-Fi status, battery status, comfort level, and more at a glance; place it anywhere using the stand or hanging slot on the back; Celsius and Fahrenheit switch button included