Carbon Monitor Carbon Detector DM72D

Features:
Detection of the four indexes, including CO2, PM2.5, temperature, and humidity.
Detection ranges largely from 0 to 999 ug/M³ for PM2.5 and from 400 to 5000 ppm for CO2.
Real-time monitoring enables you to know the data of each second exactly.
It can also serve as a clock with the time shown on the screen.
The 3000amh Li-battery guarantees a long working time.