6. NEW AIR QUALITY STANDARD /
7. BATTERY
P.12
Schematic diagram of
concentration grade
Air quality level
Average standard
value of PM2.5 in 24
hours.
Excellent
Good
Slight pollution
Moderate pollution
Heavy pollution
Serious pollution
0-35
35-75
75-115
115-150
150-250
>250
New air quality standard
Battery
If the battery is too low, it may cause the power to fail. When the
battery level shows “ ”, please charge the battery in time:
1.
Use the original adapter and USB cable to charge the meter.
2.
Plug the USB cable into the USB charging port of the meter.
3.
Charging time is at least 2 hours.
4.
Unplug the USB cable after the battery is fully charged.
