Multifunctional CO2 Air Quality Tester TVOC Temperature Meter Humidity Measuring Device Carbon Dioxide Monitor Gas DetectorDescription:It is a kind of good quality air quality detector, which is adopting professional electrochemical detection module, high accuracy, stable operation, anti-interference ability, low consumption, and can ensure long working time. Accurately detect CO2. Large display, you can clearly see the amount of electricity, CO2 value, TVOC value, HCHO value, temperature and humidity. You can give it a try. Feature:1. It adopts digital temperature and humidity sensor, high accuracy, stable operation, anti-interference ability, low consumption, and can ensure long working time.2. Large LCD display, you can clearly see the amount of electricity, CO2 value, TVOC value, HCHO value, temperature and humidity.3. C and F switchable, and the alarm sound can be on or off according to your requirements.4. Equipped with the function of evaluating the quality of the environment, it will display the appropriate level according to the measured value.5. Built-in 1800mAh lithium battery, easy to charge with USB cable.6. When the battery is too low, the battery frame flashes to remind you to charge it. Specification:Name: air quality meterMaterial: PlasticsDisplay: LCDB displayMaterial: 1*built-in lithium battery, 3.7V, 1800mAh (included)CO2 measurement range: 350ppm-2000ppmTVOC measurement range: 0.000mg/m and sup3;-2.000mg/m and sup3; HCHO measuring range: 0.000 mg/m and sup3;-1.000 mg/m and sup3; Temperature Measurement-Range: 0 C-90.0 C(32 F-194 F), 1 C/ 1 F Product Size: 176*73*29mm / 6.93*2.87*1.14in Product Weight: 222g / 7.83ouncePackage Size: 234*180*47mm / 9.21*7.09*1.85inPackage Weight: 461g / 1.02lbNote:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-2cm measurement deviation due to manual measurement.1 X Air Quality Meter1 X USB Cable