- Instant measurement PM2.5.
- Instant clock hour and month display
- Ambient Humidify and temperature measurement.
- When the meter’s WiFi(TM-280W) is turned on, you can use the mobile phone APP to view the PM2.5 real-time and historical data.
- Easy operation from the one button on the top, switch between the function of PM2.5, US AQI or CN AQI
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