[Darksheare]

It is the same mentality that puts carbon dioxide sensors in a freezer that contains dry ice...and then not understanding why the alarm goes off.
“But the salesman said...!”

[golux]

It is the same mentality that puts carbon dioxide sensors in a freezer that contains dry ice...and then not understanding why the alarm goes off.

Good point, and it's why I keep two CO2 sensors in my freezer, with differing sensitivities. This way, even when I am storing dry ice in my freezer, I have a good idea of the overall CO2 levels. The last thing I want is the the warming effect of CO2 in my freezer.