Features: *Low power consumption and long service life. *The product does not need calibration, and can be measured immediately after startup, and can accurately detect carbon dioxide. *The hundreds of vents on the back of the chassis can not only accelerate the convection between the air and the machine for effective detection, but also provide good heat dissipation. * It adopts high-definition LED screen digital display design. This air quality monitor is very easy to read, and the real-time data display is clear. LED screen can be switched between horizontal and vertical screen, and the vertical screen displays , HCHO and TVOC; The display shows PM2.5, PM10 and PM10. *Just press the power on/off button for 3 seconds to easily operate the air monitor. With LED digital display design, it can provide the average value of each gas and detect harmful HCHO and TVOC rooms in real time. *Built-in 2000mAh lithium battery. It takes 4 hours to fully charge, and it can work for more than 8 hours. You can check the air quality from anywhere, or let the equipment continuously monitor at a specific location. *Beautiful appearance, simple design and light weight. It helps us detect gaseous air pollution in homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, parties and other places. * Large screen displays power, value, TVOC value, HCHO value, PM2.5, PM10, PM1.0, temperature and humidity. Specifications: Name: Air Quality Inspection Battery: 1 * 3.7V, 2000mAh lithium battery (included) detection range: 400-5000 PPM,+50+5% PPM detection sensitivity: 1PPM TVOC detection range: 0-2.0 mg/m ⊃ 3 HCHO detection range: 0-0.6 ma/m ⊃ 3 Temperature measurement range: - 10 to 50 ° C Temperature measurement accuracy: ± 1 ℃ Humidity measurement range: 0% - 99% RH Humidity measurement accuracy: ± 3% RH Charging mode: DC5V 500mA micro USB interface 4h Package Included: 1 * Air quality detector 1 *USB Cable Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Air Quality Monitor Detector Forhchotemperature And Humiditytvoc Pm2.5 Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.