【6-in-1 Air Quality Monitor】The air quality tester is professional accuracy in measuring AQI, CO2, TVOC, PM2.5, PM10, along with the particle counter, it comes with automatic calibration that makes it an invaluable tool for maintaining a healthy indoor environment

【Excellent Sensitivity and Accurate】The air quality monitor uses the high-precision carbon dioxide sensor and laser particulate sensor, quick to update results on the display and the sensors last up to 5 years. The air quality meter also has the PM2.5 and CO2 graphs of the levels you can page through. A must-have for anyone serious about monitoring air quality

【Rechargeable and Long Lasting】3000mAh Lithium battery that standby time>8h, the air quality tester is used LED screen that easy to read from far away too, automatically goes into sleep mode after 5 minutes to save power, the handheld air quality monitor is also small enough to fit anywhere or travel along with you

【Functional and Easy to Use】With audible alarm function and the manual is easy to read and understand, press the AQI button to display the AQI interface, and press it again to mute the sound. Press the CO2 button to display the interface of CO2 and TVOC, press again to display the CO2 graphs. Press the PM2.5 button to display PM2.5, PM10, particle count interface, press again to show the PM2.5 graphs

【Wide Range of Applications】The air quality monitor size is 2.8"W x 1.3"D x 6.3"H, it also has a nice kickstand that widely used in indoor and outdoor environments such as homes, schools, offices, cars, etc. 3 YEAR quality guarantee, if you have any question, please feel free to contact us