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. Built-in lithium battery: 1200mAh Rated voltage: 3.7V Charging time: 2-3 hours Usable time: 240-360 minutes Test as soon as the machine is turned on, test indoor C02, formaldehyde, TVOC, toxic and harmful air pollution hidden dangers have nowhere to hide. Color: White/Black Material: plastic Package Contents: 1 * MT05 Indoor Air Quality Monitor 1 * Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.