VEVOR Air Quality Monitor 9-IN-1, CO2, Temperature, Humidity, Formaldehyde TVOC AQI Tester, Professional PM2.5 PM10 PM1.0 Particle Counter for Indoor/Outdoor, Air Quality Meter w/Alarm ThresholdsClear and IntuitiveSound AlarmMultiple Air InletsThoughtful DesignWide ApplicationBuilt-in Charging CableTime Display: Yes,Screen Display: 5.7in LCD Color Screen (5.4in display area),Temperature: -10°C - 50°C (14°F - 122°F),Sampling Sensitivity: 1.5s,Alarm Thresholds: CO2:1000PPM,Humidity: 20%-85% Accuracy: ±4%,Model: DM197,CO2 (Carbon Dioxide Concentration): Accuracy: ±10% (Infrared NDIR),Battery Level Display: Yes,Product Dimensions (L x W x H): 7.20x3.46x2.05in / 183x88x52mm,Net Weight (with all accessories): 0.79lb / 358g