3.2 Inches Screen 1.5 Inches Screen Wireless APP Control Smart Alert for Reminding Data Storage Export Wireless Range 30m(in the open area) 35m(in the open area) Notification Alerts Push Power Battery: 3AAA (not included) Upgraded Battery - CR2447 [ This Bluetooth temperature and humidity sensor will be a good helper in your life. ] It can real-time detect the temperature and humidity condition. Automatic alarm if the temperature and humidity is abnormal. You can easy view the temperature and humidity change by the data according to all historical records, which up to 100 days. - Upgraded Battery - CR2477. - The connection distance can reach 50m / 164ft (with no obstacles). Note: 1) This product is the Bluetooth version (Not Wifi version) 2) Wireless Thermometer Hygrometer is little bigger than a CR2477 battery.
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