Intelligent Digital Air Quality Monitor, C02/HCHO/TOVC/Temperature/Humidity Tester, Measuring Range 400-5000PPMYOUKUKEFunctionality:Multifunctional: This CO2 meter supports carbon dioxide, formaldehyde (HCHO), TVOC harmful gases, temperature and humidity detection, intelligent alarm system, risk assessment, gas detection algorithm, multiple suppression, air convection technology, greenhouse gas compensation calibration.High performance: Use infrared optical principle to detect air quality quickly and accurately. With color reminder alarm mode, you can always pay attention to the concentration of CO2, HCHO, TVOC.LCD Digital Display: The intelligent digital CO2 meter can display the detected carbon dioxide concentration per cubic meter in real time. The measuring range is 400-5000ppm and the measuring accuracy is 10ppm.Portable and Durable: With a pocket size of 89*70*35mm, it is easy to carry with you and can be charged with a USB cable. Small size, takes up less space, easy to install in any places.Wide Applications: The CO2 detector can be widely used in homes, commercial offices, educational institutions, agricultural plantations, greenhouse vegetables, production warehouses, raw material processing, interior decoration, etc.Warm Tips:1.You can use it after power on. For accurate measurement, it is necessary to leave it for 5-15 minutes after power on, and the reading will be stable to get accurate value.2.The air quality monitor can last 7-8 hours when fully charged. It is recommended to connect to the power supply for long-term use.+ product..........FeaturesFeatures:Material: ABSMeasuring accuracy: 10ppmMeasuring range: 400-5000ppmOperating voltage: 3.7 VCurrent: 120mAPower: 0.4 WBattery: 3.7V, 1500mAhItem size: 89*70*35mmPackage Included:x Air Quality Monitor1 x USB cable1 x User Manual