[Comprehensive Air Quality Detection]: This 10-in-1 air quality tester integrates multiple test functions for measuring , CO2 levels, TVOCs, humidity, temperature, PM2.5, PM1.0, PM10 particles, HCHO, and time. It provides a comprehensive way to constantly track indoor air quality, empowering you to stay informed about the air conditions in your home from anywhere, at any time. [Built-in High-precise Sensor]: Utilizing high technologies such as NDIR infrared carbon dioxide sensors, laser particle sensors, semiconductor sensors, and optical sensors to accurate detection results and meet measurement requirements in different application scenarios. [Automatic Calibration & Brightness Adjustment]: The automatic calibration feature guarantees the accuracy of the test outcomes. This device is designed to automatically regulate its screen brightness based on the surrounding light conditions, and it further supports an energy-saving screen-off mode. Even when the screen is turned off, it continues to test the concentrations of gases, thus achieving high practicality and energy efficiency while being eco-friendly. [Convenient APP Control & Intelligent Reminder]: Supporting SmartHome and Tuya APP, the device comes with a built-in Wi-Fi function, enabling remotely control and real-time data querying capabilities accessible via a mobilephone application. Once it detects values surpassing the predefined standards, it promptly pushes intelligent alerts through the SmartHome or TUYA App. [Humanized Design & Multi-scenario Application]: The product design is compact and supports wall-mounted installation, equipped with positioning stickers and wall accessories, space-saving and aesthetically pleasing design. Applicable to families, schools, hospitals, children's rooms, hotels, restaurants, cars, and other places. No matter where you are, you can know the air quality status of your home, car, and other scenarios. Colour:Black Material:Plastic Package Contents: 1x Air Quality Tester 1x cable 1x English instruction manual 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.