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Re: Portable CO meter
Phil, what about Gunson's offerings - I bought their GBP50 Gas Analyser a
few years ago - seems to work quite well. It's the one with the analogue
scale. Their latest one seems to have a digital readout.
It doesn't measure CO directly (even though the readout is marked as such) -
it measures CO2 and presumes a linear relationship between them which I
believe is valid for low values from car engines.
I set up one of my cars for an MOT using this - the professional one used by
the MOT station which is presumably calibrated regularly was within 10%.
1984 Audi 80 quattro
1989 Audi 100 Avant