Accurate and Reliable Monitoring: The Air Quality Monitor utilizes advanced detection methods, including scattering for PM measurement, ensuring accurate and reliable results. With a quick sampling time of just 1.5 seconds, it provides real-time information on atmospheric pressure, temperature, and humidity. Portable and Convenient Design: With its compact dimensions of 164x69x44mm and lightweight construction of only 179g, this Air Quality Monitor is highly portable and convenient for both indoor and outdoor use. Long-lasting Battery Life: Powered by a high-capacity lithium battery with 2000mAh, this monitor offers extended usa time before needing a rechar. With this comprehensive packa, you can begin monitoring and improving the air quality in your surroundings right away. User-Friendly Display: Equipped with a high-resolution 2.8" LCD screen, this monitor delivers clear and easy-to-read data. The 320 x 240 pixel display allows for effortless monitoring of PM concentration levels (PM2.5/1.0/10) as well as HCHO and TVOC concentrations.