- Large digital backlit display provides clear visibility for easy reading, complete with alarm functionality to keep you aware of air quality levels. - 9-in-1 multifunctional air quality detector measures CO2 concentration, CO concentration, TVOC levels, HCHO levels, PM2.5/PM10 values, temperature, and relative humidity, making it an essential tool for monitoring indoor air quality. - Ideal for various environments such as offices, schools, warehouses, and agricultural settings. The device operates automatically with no need for calibration, ensuring hassle-free use. - Equipped with advanced air semiconductor technology for PM2.5 and a high-performance electrochemical chip, this device delivers precise measurements with an accuracy of up to 1 PPM, ensuring reliable data for informed decision-making. - Use it in your workplace to maintain a healthy environment, in classrooms to ensure students breathe clean air, or in warehouses to monitor air quality during storage and handling of goods. This air quality detector is designed for performance, reliability, and ease of use, making it an essential addition to any space concerned with air quality management.