Review on DOEATOOW Detector Temperature Dual Channel 0 9999Ppm Test, Measure & Inspect by Larry Blanco

This CO2 monitor is easy to read, responds quickly and appears to be accurate. You can set upper limits for warning and alarm levels. The built-in battery ensures mobile operation for several hours. We could ventilate the house when the CO2 levels get too high. It's fun to see the numbers change. We heat with firewood and it was necessary to know if the stove was leaking into the house. It is not. I recommend this to anyone who needs a good CO2 monitor.