Easy to
Read: This air quality tester has a large and colorful screen, a real-time display of 11 kinds of data, and a quick understanding of environmental conditions through different colors, making it effortless to interpret air quality data.
Long Time To Use: With a built-in 2000 mah battery, this air quality meter can work continuously for 6-7 hours and fully charged take 3-4 hours. With high capacity battery and type c cable, you could take it around your home, office, school, hotel or car as needed.