🔬 Advanced Quality Analyzer Detector Monitor for Precise 400-5000ppm Analysis Review

This CO2 meter need to be charged for several hours first with the USB cable included in the package box after you receive it . CO2 detector with built-in 2500 mAh battery → This CO2 Detector has a built-in 3.7V, 2500 mAh battery, which powers a bright screen. At the same time, you can also connect any 5V adapter, which supports charging while working. CO2 Meter Plug and play → Built-in accurate air quality Infrared (NDIR) sensor, you can get stable and accurate data after only 30 seconds of initialization after touching the switch. 2.4-inch large screen and bright and clear display → This CO2 tester uses a 2.4-inch large screen, and the brightness of the display data is increased in the design, so that even the elderly can see clearly. Different colors indicate different CO2 levels→400-999ppm green means your CO2 is low level, 1000-1999ppm yellow means medium volume, 2000-5000ppm red means what you should do to improve air quality at this time. Please Note: The CO2 level of the air is not a fixed data,it's changing in a range anytime, so the reading in the display is fluctuating. Multifunctional Carbon Dioxide tester → This product fill light can detect your indoor carbon dioxide, but also display the air humidity and temperature. If you have any questions, please let us know. Your email will be answered within 12 hours. log in your Amazon account> choose "Your orders"> find the order ID> click "contact seller".