ADVANCED 10-IN-1 MONITORING: Stay informed with real-time updates on indoor air quality. This device tracks AQI, CO2, PM1.0, PM2.5, PM10, particles, HCHO, TVOC, temperature, and humidity, ensuring your family's health and well-being. PRECISE AND RESPONSIVE SENSORS: Equipped with state-of-the-art sensors including NDIR infrared for CO2, laser for particles, and semiconductor for gas detection, this monitor delivers accurate and swift responses to air quality changes. INTELLIGENT ALERT SYSTEM: Features a color-coded and sound alarm system that indicates air quality levels from good to unhealthy. Alerts include visual changes on the display and an audible alarm to promptly notify you of hazardous conditions. USER-FRIENDLY DISPLAY: The LCD screen of the Air Quality Monitor offers clear, color-coded data visualization. Adjustable screen brightness ensures optimal visibility, making it easy to keep tabs on the air quality indoors at any time. DURABLE BATTERY AND PORTABILITY: With a robust 2500mAh battery offering 11-12 hours of operation and a Type-C charging port, this portable monitor is ideal for continuous monitoring in various indoor environments like homes, offices, and cars. Note:Due to different production batches, the appearance may vary slightly, but it does not affect the use. Colour:Black Material:Plastic Package Contents: 1 * Air Quality Monitor 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.