[leemck]

The AZ-0001 Co2 meter. Vendor of a CO2 meter with zero to 2000 ppm co2, 30 or 50 ppm accuracy, serial data output, humidity, and temperature. The meter appears on a big name cheap sales website for a little under $200.

https://www.co2meter.com/collections/handheld/products/az-ha...

One problem with the yellow AZ-0001 CO2 meter is the meter has to be manually restarted if the 9 volt input DC power is interrupted. A second problem is the CO2 value is quite sensitive to my breath when the meter is running on the garage workbench. For outdoor readings the mechanical problem is to put the meter at least 8 feet away from passing humans and also have the meter accessible for restarting.

The same vendor sells a hockey puck device which I have also used. I stopped using the hockey puck due to it's humidity measure device. That was about 4 years ago.

https://lessco2essay.blogspot.com/2015/08/carbon-dioxide-met...

Contact me for a copy of my Python CO2 meter software. The output of the software is lines of unixtime, GPS position, CO2, humidity, and temperature. leemck at gmail dot com.

My CO2 interest is in the global excess CO2 problem.