Name: Air Quality DetectorSize: about 95*85*35MM/3.74*3.35*1.38inWeight: about 150gRated voltage: DC5V-2ABattery capacity: 2000mAhLife time: about 16 hoursCharging time: about 3 hoursTemperature and humidity display: use high-precision temperature and humidity sensor to detect, real-time display value; temperature display 0---40 ℃ (32---99° F), humidity display 20%---95% (tolerance + /-5%)。CO2 concentration display: use a high-precision carbon dioxide sensor to detect and display the CO2 concentration value in real time; the display concentration value range is 400---6000ppm。TVOC concentration display: use high-precision TVOC sensor to detect and display the value in real time; the TVOC concentration value display range is 0---2 mg/m。HCHO concentration display: use high-precision HCHO sensor to detect and display the value in real time; the HCHO concentration value display range is 0---1 mg/m 3。CO2 concentration level display and alarm prompt: according to the value detected by the CO2 sensor, different colors are used to display the concentration level, which is a more intuitive experience。Packing List:Air Quality Detector *1USB Charging Cable*1Manual *1Wall Nail*1Noted:1.Please allow 1-2mm errors due to manual measurement.2.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.