Comprehensive Air Quality Assessment: This advanced 9-in-1 air quality monitor utilizes a blend of electrochemistry, semiconductor, and temperature and humidity sensors to accurately measure levels of CO2, CO, HCHO, TVOC, PM2.5, PM10, and . It also provides detailed readings of temperature and humidity, ensuring a thorough understanding of your indoor environment. Monitoring Technology: Equipped with the latest in semiconductor, infrared, and electrochemical detection technologies, our air quality detector offers precise measurements of harmful pollutants such as PM2.5, PM10, HCHO, VOCs, and CO2. This device ensures you are always aware of the quality of air you and your loved are breathing. Real-Time Air Quality Updates: Featuring a high-quality infrared NDIR sensor and an intelligent early warning system, this monitor allows you to track air quality changes instantly. The dual display, combining digital readings and analog bar colors, provides a clear and immediate visualization of current air conditions, enabling proactive air quality management. User-Friendly Operation: Designed for ease of use, this air quality monitor does not require complicated setups with apps or Wi-Fi. Simply turn on the device to monitoring the air quality in your surroundings automatically. Its intuitive design makes it accessible for anyone to use anywhere in the home or office. Long-Lasting Battery Life: The built-in big rechargeable battery in our CO2 detector offers up to 24 hours of standby time, reducing the need for frequent recharging. Its portable design allows for easy movement around different rooms, ensuring you can monitor air quality where it matters most. Color: As shown 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.