Features 1、Multi Function: This air quality monitor features 8 in 1 multifunction, and it can monitor CO2, TVOC, experiment, PM2.5 and PM1.0, PM10, temperature and humidity. 2、Color Screen: This CO2 detector adopts intelligent color screen to provide real time monitoring and display. 3、USB Charging: This TVOC detector adopts 2000mAh battery and it supports USB charging, providing great convenience. 4、Space Saving: This formaldehyde detector is small and portable, suitable for offices, homes, gyms and other occasion, with a wide range of applications. 5、Color Change: In alert mode, this air quality monitor will alert the user to the environment by changing the colors. Specifications Item Type: Air Quality Monitor Material: ABS Test Type: CO2,TVOC,HCHO,PM2.5,PM1.0,PM10,Temperature and Humidity CO2 Detection Accuracy: 1ppm CO2 Measurement Range: 400-6000PPM ±50 ±5%PPM TVOC Measurement Range: 0-2.0mg/m³ HCHO Measurement Range: 0-0.6mg/m³ PM2.5 Measurement Range: 0-1000ug/m³ PM2.5 Detection Accuracy: 1ug/m³ PM1.0 Measurement Range: 0-1000ug/m³ PM10 Measurement Range: 0-1000ug/m³ Temperature Range: -10-50℃ Temperature Detection Error: ±2℃ Humidity Detection Range: 0%-99%rh Humidity Detection Error: ±3%RH Voltage: 5V Current: 500mA Power: 0.9W Battery: 18650 Lithium Polymer Battery 2000mAh (Battery Included) Product Size: Approx. 70 x 35 x 89mm / 2.76 x 1.38 x 3.50in ( Manual Measurement, Slight Error May Exist ) Weight: Approx. 232g / 8.18oz Package List 1 x Air Quality Monitor (Battery Included) 1 x USB Cable 1 x User Manual