1. Description:Home Air Quality Detector Multifunctional CO2/Temperature/Humidity Monitor Carbon Dioxide PPM TVOC Semiconductor Sensor LED Display 1200mAh2.Features:With large LED screen, so you can see the data more clearly. Built-in 1200mAh lithium battery.This product not only can detect CO2 for you, but also can detect temperature and humidity.The measurement is displayed on a high-definition screen, small and lightweight for easy carrying.Wide application: You can use this product for home air detection, car air detection, office air detection and so on.3. Settings:Item Name: Air Quality DetectorColor: White/Black (optional)Detection: Semiconductor inductionCO2 measuring range: 400~5000 ppmBattery capacity: 1200 mAhCharging standard: 5V, 1AInterface: Type-CSize: 90*70*35mmWeight: about 106 g4.Note:There is a little 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 vapor, etc., which may affect the detection accuracy.5. Package list:1 * Air Quality Detector1 * Charging Cable1 * User Manual