Features 1、MULTI FUNCTION: This air quality meter supports real time refreshing of data, and one click calibration, press the power button quickly 3 or 6 times to calibrate sensor data. 2、HIGHLY PRACTICAL: The air quality monitor could measure PM2.5 PM10 HCHO TVOC CO CO2, keeping you to constantly understand air quality. 3、COLOR LCD DISPLAY: The air quality detector adopts large color LCD screen, very clear, convenient for people to read. 4、SENSITIVE SENSOR: The air quality tester adopts excellent sensor, which is more sensitive, accurate and stable, can be used with confidence. 5、WIDE USAGE: The detector can be widely used for home indoor air quality testing, car air testing, maternal and infant room air testing, public place testing. Specification Item Type: Air Quality Meter Material: ABS Battery: Lithium battery 2000mAh (built in) Use: Widely used for home indoor air quality testing, car air testing, maternal and infant room air testing, public place testing Basic Parameter: PM2.5: 0-1000ug/m3 PM10: 0-1000ug/m3 HCHO: 0-0.6mg/m3 TVOC: 0-2.0mg/m3 CO: 0-500PPM CO2: 400-6000PPM Package List 1 x Air Quality Meter 1 x USB Cable 1 x User Manual