PhilistineEars
Member
- Jul 1, 2018
- 62
Also the meter you are looking at is the one that reviews said was accurate to about 6,000ppm. This is still an electrochemical sensor and as such cannot accurately read high concentrations before it becomes "poisoned" or saturated. For true high close concentration detection you'd need an NDIR (non-dispersive infrared sensor). Essentially using light spectroscopy calibrated against CO's emission signature to identify the CO concentration.
This is what auto exhaust gas analyzers and lab analysis equipment use. One of the meters they had (ppeh pictures) also was an NDIR type (yellow one).
This is what auto exhaust gas analyzers and lab analysis equipment use. One of the meters they had (ppeh pictures) also was an NDIR type (yellow one).
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