Portable CO2 Detector Air Quality Detector Intelligent Air Detector Temperature And Humidity Sensor Tester Carbon Dioxide Monitor TVOC Formaldehyde Detector HCHO Detector This detector is small and portable, can clearly display HCHO and CO2 concentration, the temperature and humidity of the environment, suitable for office, home, gym and other use scenarios. Features: With TVOC sensor, it can detect TVOC in the environment and better understand the environment. Real-time monitoring and real-time display of carbon dioxide concentration per cubic meter. It can detect and display the temperature and humidity of the environment to help users understand the environment. It is suitable for office, family, gym and other occasions, with a wide ranges of applications. Intelligent color screen display, the number is clear, easy to identify and read. With alarm mode, through color change, users are prompted to pay attention to the environment. It has long service life and can be charged with USB cable. Small and portable, easy to carry, does not take up too much space, can be installed in the home. Specifications: Material: plastics Color: black, white (optional) Display method: 2.8”LCD screen display, 240 * 320 pixels Detection ranges: CO2 (0~6000 ppm) Sampling times: 1.5 seconds Detection temperature: -10°C to 70°C Relativehumidity: 10% ~ 99% Storage temperature: -10°C to 60°C Concentration unit for HCHO and TVOC: mg/m³ Working voltage: 7V Current: 120mA Power: 0.4W Battery: 3.7V, 1500mAh Item size: 88 * 70 * 35mm / 3.5 * 2.8 * 1.4in Item weight: 150g / 5.3ounce Package size: 141 * 98 * 48mm / 5.6 * 3.9 * 1.9in Package weight: 250g / 8.8ounce Packing List: 1 * Detector 1 * USB Cable 1 * Manual