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Re: ESP BAR 97 Gas Calibration Failure
Posted to Emissions Forum on 3/18/2019 1 Reply

i have a old [ 70 s ]hamilton test 4 gas , the oxy sensor will go bad at about 3 years interval, this is same sensor that is used in medical field .it has a chemical in it that goes out at 3 years interval once installed .also the multiple hoses inside machine... Login to read more.

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