Easy to Place: The wifi temperature humidity sensor's design fits in the palm of your hands. It's small enough to fit in potted plants, cigar humidors, reptile vivariums, and other small spaces. Meet your needs for any corner.Alert Function: Set preset temperature and humidity ranges, and the APP will alert you via cell phone when the smart hygrometer thermometer detects readings outside of the range. Respond faster to sudden changes in the greenhouses, bedrooms temperature, and more.Versatile and Accurate: Swiss-made sensors provide a wide range for detecting humidity and temperature. The range for temperature is between 0.54/0.3 while the humidity measurement range is between 0%-99%RH for more accurate measurements.Data Storage: Remote monitoring with the thermometer/hygrometer. Supports online viewing of 20-day data graphs and export of data recorded over the past 2 years, perfect for nurseries, wine cellars, basements, botanical gardens etc.Smart WiFi Temperature Sensor: With the 3 included sensors, you can easily monitor temperature and humidity data in real time from anywhere with the APP. WiFi gateway supports pairing up to 10 sensors to extend your monitoring range to any location indoors and outdoors.(not support 5G WiFi)