Rechargeable & Long Lasting: Built in 1600mAh battery supports extended use with tiny USB charging compatibility, working seamlessly with power banks, adapters, or computers Compact & Portable Design: With dimensions of 112×68×66mm and lightweight 125g body, this handheld meter is space saving and easy to carry any where for on the go measurements Multi Function Monitor: This CO2 humidity temperature detector simultaneously measures and displays three indoor air measurements, making it ideal for both home and work area environments Accurate NDIR sensors Technology: Equipped with advanced ir NDIR sensors, it detects CO2 levels from 400 5000 ppm with fast 1.5 second sampling time, ensuring and stable air Clear LCD Display: Features a large LCD screen that clearly shows real time CO2, temperature, and humidity readings, providing fast visibility of your environment ' s conditions, Manufacturer: PXZH