How the Alcotest 3820 works.

Know your blood alcohol concentration with the Alcotest 3820 – after three to 25 seconds, depending on the device temperature and measured concentrations. The user can customize the language setting, several options are available. Plus, there are graphics indicating the operating status, the current test number, or the last ten results with date and time.
                                                                                                                                                         Further information:
https://www.draeger.com/en_uk/Alcohol...

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