This multifunctional detector helps you better understand your current environment. It displays detected PM2.5, CO2, TVOC, HCHO, temperature, and humidity levels. It also functions as a clock, showing time, date, and weekday. This eliminates the need to purchase a separate alarm clock. Features: - Portable Size: Compact design makes it convenient for daily use and saves desktop space. - Tuya APP Remote Viewing: After connecting to the mobile app, you can easily view data from your smartphone anytime, anywhere. - Alarm Settings: You can set up two alarm times according to your needs, eliminating the need for a separate alarm clock. - Rechargeable Battery: Built-in large capacity rechargeable lithium battery provides long-lasting power. - Large Display: The large color screen makes data easy to read, especially for elderly users and children, offering a better user experience. - Interface Control: Short press the button to switch between history and calendar interfaces. Use the "+" and "-" buttons to access the parameter settings interface. Specifications: - Material: ABS - Color: White, Black (optional) - Sensors: VOC sensors - PM2.5 Measuring Range: 0-9999ug/m³ - PM2.5 Resolution: 1ug/m³ - TVOC Measuring Range: 0-3mg/m³ - TVOC Resolution: 0.001mg/m³ - CO2 Measuring Range: 400-5000PPM - HCHO Measuring Range: 0-3mg/m³ - Temperature Measuring Range: 0-60°C - Humidity Measuring Range: 0-99%RH - Battery: 1 * lithium battery, 1200mAh (included) - Package Size: 120 * 110 * 50mm / 4.7 * 4.3 * 2.0in - Package Weight: 270g / 9.5ounce Packing List: - 1 * Air Quality Monitor - 1 * Cable - 1 * Manual