General description The 5-in-1 professional air quality meter is designed to accurately measure HCHO, CO2, TVOC, temperature, and humidity data. It features a large color LCD display that is easy to read, even in dark environments. The device provides real-time feedback with a colored bar that changes as the recorded concentration varies, alerting users through color changes. Technical specifications Measures: HCHO, CO2, TVOC, temperature, and humidity Display: Colorful LCD Battery: Built-in 1200 mAh high-performance rechargeable battery Charging: Via USB (compatible with power bank, power adapter, computer, PC, laptop) Usage The air quality meter is ideal for monitoring air quality in various environments, including homes, cars, hotels, apartments, offices, bars, libraries, and outdoors. It automatically and accurately detects the concentration of CO2, formaldehyde, and VOCs in the air, promoting a healthier lifestyle.