1The rechargeable carbon dioxide detector uses NDIR infrared sensors to monitor the concentration of carbon dioxide in real time, and the current temperature and humidity are displayed on the screen. 2Highquality TFT screen. The air quality tester has a 2.8in TFT screen and an elegant appearance, suitable for any style of decoration. 3The air quality monitor can accurately detect carbon dioxide (CO2), humidity, and temperature of the air. The measuring range of CO2 is 4005000 ppm. 4Stylish design. The size is approx. 3.2 x 2.1 x 5.3in. This air quality tester has a builtin 1500mAh battery(include) that can be used for 612 hours. It comes with a USB 2.0 cable for charging. 5The easytocarry smart PM2.5 sensor can help us detect particulate pollution in homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, parties, etc. Especially in the case of there are babies, children, and Pregnant woman.
