Review on 🔍 Amprobe CO2-100: A Reliable Handheld Carbon Dioxide Meter for Accurate Monitoring by Ian Iknokinok

Works great so far. Measures CO2, temperature and humidity. Readings are almost instantaneous and definitely accurate. Turn on CO2 and the counter will steadily increase. The controls are a bit clunky, but they work if you take the time to read the manual and set it up properly. I couldn't find a way to turn it off, but it turns off automatically after 20 minutes, and I ended up actually finding it useful so I can control it over time and in multiple locations. Surprised that outdoor CO2 levels are typically half those indoors.