Feature: 1. [High Accuracy] Real time monitoring and display of carbon dioxide concentration per cubic meter, with accurate measurement results. 2. [Durable Material] The product is made of high quality ABS material, durable, easy to carry, and can be used with confidence for a long time. 3. [Color Screen] This air quality detector has Smart color screen display, clear numbers, easy to identify and read. 4. [Multifunctional] It can detect and display the temperature and humidity of the environment to help users understand the environment. 5. [Widely Application] Has a wide range of applications, such as offices, bedrooms, living rooms, gymnasiums, etc. Specification: Item Type: Air Quality Detector Material: ABS Product Size: Approx. 9 x 7 x 3.5 cm / 3.5 x 2.8 x 1.4 in Current: 500mA Working Voltage: 3.7V Battery: A polymer lithium battery 18650 (Battery Not Included) CO2 Detection Range: 400-6000PPM CO2 Detection Accuracy: 1PPM TVOC Detection Range: 0-2.0mg/m³ HCHO Detection Range: 0-0.6mg/m³ Temperature Measurement Range: -10-50℃ Temperature Measurement Error: ±2℃ Humidity Detection Range: 0%-99%RH Humidity Detection Error: ±3%RH Function: Bluetooth Weight: Approx. 168g / 5.9ozColor: White. Package List: 1 x Air Quality Detector (Battery Not Included)1 x Manual1 x USB Data Cable