Fangrui Product Details Essential For : The Air Quality Monitor Empowers You To Take Charge Of By Providing Accurate Measurements Of Pm2.5, Pm10, Co2, Formaldehyde (hcho), Total Volatile Organic Compounds (tvoc), Humidity, And Temperature. The Readings Are Conveniently Displayed On An Ultra-high-definition Color Screen That Enhances Readability. Rapid Response High Precision: The Device Boasts A State-of-the-art Sensor With A Fast Response Rate That Refreshes Every 1-2 Seconds. It Leverages Advanced Ndir Sensor Technology For Co2, Pm2.5, And Pm10 Measurements And Utilizes An Electrochemistry Sensor For Hcho And Tvoc. This Combination Delivers More Sensitive, Accurate, And Stable Readings Compared To Common Sensors. Extended Battery Life: A Built-in 2000mah Battery Allows For An Impressive 16 Hours Of Continuous Usage Upon Full Charging. The Monitor Comes With A Usb Charging Cable, And A Low Power Consumption Processing Chip Is Included For Prolonged Battery Life. Please Note, The Device Should Not Be Used When Charging Or In L