1.Description:Household Air Quality Detector Multifunctional CO2/Temperature/Humidity Monitor Carbon Dioxide PPM TVOC Semiconductor Sensor LED Display 1200mAh2.Features:With big LED display, so you can see the data more clearly. Built-in 1200mAh lithium battery.This product can not only detect the CO2 for you, but also can detect temperature and humidity.The measurement is displayed on a high definition screen, small and light design for easy carrying.Wide application: you can use this product for home air detect, car air detect, office air detect and so on.3.Parameters:Item name: Air Quality DetectorColor: White/Black (optional)Detection: Semiconductor inductionCO2 Measuring range: 400~5000ppmBattery capacity: 1200mAhCharging standard: 5V, 1AInterface: Type-CSize: 90*70*35 mmWeight: about 106 g4.Note:There is a little of difference according to manual measurement.Disadvantages: The semiconductor sensor is very sensitive to organic gases, especially active organic gases such as alcohol, formaldehyde, vinegar, oil fume, etc., which may affect the accuracy of detection.5.Package List:1 * Air Quality Detector1 * Charging Cable1 * User Manual