This Digital Air Quality Monitor is equipped with a built-in 580mAh lithium battery that supports USB charging, enabling quick 30-minute fast charging for over 4.5 hours of uninterrupted operation. It precisely measures PM2.5 levels and triggers a red flashing alarm when concentrations exceed the default threshold of 115, ensuring timely alerts for hazardous air quality. Additionally, it monitors temperature and humidity, offering a comprehensive diagnostic tool for maintaining optimal indoor environments with expert accuracy.
