[Remote real-time monitoring] The SNZB-02D sensor will monitor the temperature and humidity remotely on the APP, or in real time on the display, with a coverage of up to 120 meters/400 feet [High Accuracy & 5s Quick Refresh] Built-in high grade smart hygrometer sensor for more accurate readings, maintains 0.2/0.4 temperature accuracy and 2%RH humidity accuracy, refreshes readings every 5 seconds [Large LCD Display] Use the large LCD display to view the real-time values of temperature and humidity clearly and dynamically, and the intuitive display icons make it easier for you to view room conditions and battery status [App Notification] When the temperature or humidity exceeds your set comfort level, you will receive an instant reminder from your phone [Data storage & export] Free cloud storage for up to half a year, the most accurate enough to view hourly data, you can also view the highest and lowest values for any hour or day, and the data can be exported as a file Specification: Battery type: CR2450 (included) Capacity: 600mAh Voltage: 3V Package included: 1 x Smart Temperature Humidity Sensor 1 x English and Chinese User Manual Other items not include