1. High-Quality Air Quality Detection: The Air Quality Detector uses a premium electrochemical detection module, ensuring stable performance and strong anti-interference capabilities. 2. Vivid TFT Color Screen: Equipped with a 2.8-inch TFT color display, the Formaldehyde Temperature Humidity AQI Tester allows you to view test data at a glance, making it easy to monitor air quality in real-time. 3. Compact and Portable Design: The CO2 Detector is small and lightweight, making it easy to carry around. Its attractive appearance and color scheme make it a stylish addition to any home or office. 4. Versatile Application: Ideal for both professional and household use, this air quality detector provides comprehensive monitoring, helping you maintain a healthy environment by keeping track of various air quality indicators. Display: 2.8 Inch TFT Screen Test item: Carbon dioxide, temperature, humidity, HCHO, TVOC, PM2.5, PM10, pm0.3 carbon monoxide, AQI Definition: 1, fast flashing, network configuration available, 2, slow flashing, indicating WiFi is displayed, network configuration is not available. 3, WiFi does not flash and is always on, indicating successful network configuration. Color: Black Material: plastic Package Contents: 1 x 10in 1 Air Quality Monitor