Feature 1Real Time Monitoring: Real time monitoring and real time display of carbon dioxide concentration per cubic meter. 2Intelligent Color Screen Display: Equipped with intelligent color screen display, the numbers are clear, easy to identify and read. 3Alarm Mode: In the alarm mode, the user can be reminded to pay attention to the environment by changing the display color of the air quality detector. 4BT Function: With BT function, download the APP, you can view the data on the mobile phone APP can read up to 60 days, 1440 groups of data. 5Multifunctional: It can also detect and display the temperature and humidity of the environment to help users understand the environment. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Item Type: AirQualityMonitorMaterial: ABSProduct Size: Approx. 9.5 x 9.5 x 3cm / 3.7 x 3.7 x 1.2inVoltage: 5VBT APP: SupportCO2 Detection Range: 400-6000PP, 50 5%PPMCO2 Detection Accuracy: 1PPMTVOC Detection Range: 0-2.0mg/mHCHO Detection Range: 0-0.6mg/mTemperature Detection Range: -10-50Temperature Detection Accuracy: 2Humidity Detection Range: 0%-99%rhHumidity Detection Accuracy: 3%rhBattery: Polymer Lithium Battery 1500mah (Included)Weight: Approx. 255g / 9.0ozPackage List1 x AirQualityMonitor1 x User Manual1 x USB Power Cable