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Features:1、Powering and Measuring: The air quality monitor is powered by a lithium battery and it can be easily measured from room to room to fully understand the air quality in homes, workplaces, schools, nurseries, etc.2、Track 4 Main Factors: It can track the four main factors of air quality: HCHO..

Features:【Multiple function】Real time testing the concentration of carbon dioxide, temperature and humidity.【Selected quality sensor】High accuracy, anti-interference, with quickly reaction speed.【Equipped with large digital display with backlight】You can see the remaining electric quantity, carbon d..

Features:【Multiple function】Real time testing the concentration of carbon dioxide, temperature and humidity.【Selected quality sensor】High accuracy, anti-interference, with quickly reaction speed.【Equipped with large digital display with backlight】You can see the remaining electric quantity, carbon d..

Features:1、Powering and Measuring: The air quality monitor is powered by a lithium battery and it can be easily measured from room to room to fully understand the air quality in homes, workplaces, schools, nurseries, etc.2、Track 4 Main Factors: It can track the four main factors of air quality: HCHO..

Reference Table For Air Quality Pollution Grade GoodMildModerateSevereSeriousHCHO0-0.10.101-0.20.201-0.50.501-1.01.001-1.999TVOC0-0.60.601-1.51.501-33.001-66.001-12PM2.536-7576-100101-150151-250251-1000PM1051-100101-130131-200201-300301-2000Environmental(2)GOOD(3)POLLUTE(4)POLLUTE(5)P..

Reference Table For Air Quality Pollution Grade GoodMildModerateSevereSeriousHCHO0-0.10.101-0.20.201-0.50.501-1.01.001-1.999TVOC0-0.60.601-1.51.501-33.001-66.001-12PM2.536-7576-100101-150151-250251-1000PM1051-100101-130131-200201-300301-2000Environmental(2)GOOD(3)POLLUTE(4)POLLUTE(5)P..