1. [Wifi + Bluetooth Dual Mode]: Connect to network faster. Network connection speed is 2 times faster than just Wifi 2. [High and Low Temperature Alarm]: Once the set temperature value is exceeded, the phone will emit an alarm 4. [Real-time monitoring]: AAA1.5V*2 battery power supply (excluding batteries), low power consumption, according to the default settings, can be used for about 1 year. Data refresh rate from 1 to 120 minutes, you can choose the refresh rate as needed. The lower the value, the lower the actual battery life 3. [High humidity and low humidity alarm]: once the set humidity value is exceeded, the phone will alarm 5. [Temperature and Humidity Curve]: Record temperature and humidity changes in the app and present them with graphs. Inform you of recent data changes more intuitively, Weight: 0.04850169764 pounds, Manufacturer: Faeymth