Feature: 1. Multifunctional Detector: 6 in 1 air quality monitor can detect and display CO2, TVOC, HCHO, PM2.5, temperature, humidityto help users understand the environment. 2. Monitor CO2 Concentration: Air quality detector monitors and displays the carbon dioxide concentration per cubic meter in real time. 3. Intelligent Color Screen Display: CO2 monitor has intelligent color screen display, the numbers are clear, easy to identify and read. 4. Applicable Scenes: 6 in 1 air quality monitor is suitable for offices, homes, gyms and other occasions with a wide range of applications. 5. Alert Mode: In alert mode, the user is alerted to the environment by changing the color. Build in 120mAh lithium battery. Size is 9x7x3.4cm / 3.5x2.8x1.3in. 6. Compact and Portable: CO2 meter is small and portable, easy to carry, does not take up too much space, and can be installed at home. Specification: Item Type: 6 in 1 Air Quality Monitor Voltage: 5V Material: ABS Weight: Approx. 184g / 6.5oz Battery: Polymer Lithium Battery 1200mAh (Included) Display Mode: LCD Color Screen + Backlight Display PM2.5 Detection Range: 0-999μg/m³ HCHO Detection Range: 0-1999μg/m³ TVOC Detection Range: 0-1999μg/m³ CO2 Detection Range: 400-5000PPM Temperature Detection Range: 0-50℃ Humidity Detection Range: 0-99%RH Product Size: Approx. 9x7x3.4cm / 3.5x2.8x1.3in. Package List: 1 x Detector1 x Manual1 x USB Power Cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.