Review on 📊 Enhanced Monitoring System for Carbon Dioxide Levels in Offices and Classrooms by Christopher Bates

The large display is really good and easy to read even from a distance. Monitoring the CO2 level was very interesting. At night the level was around 2400. Well ventilated. After some work we are now under 1000. My wife's headache has subsided. Our first block died after a few months. A new replacement device was sent without any problems. Other manufacturers should pay attention to this.