Intoxilyzer 400 Breath Alcohol Tester

Intoxilyzer 400 Breath Alcohol Tester

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Usage conditions apply
This hand held preliminary breath tester (PBT) was designed to be used by the police at the roadside. It had a number of improved features over the early PBTs in that it took the sample automatically after the individual had exhaled sufficiently to produce deep lung air. It also recorded with a case number and time and date record from 60 to 100 tests.
Currently not on view
Object Name
breath alcohol tester
Breath alcohol tester
Physical Description
leather (case material)
metal (tester material)
overall: 3 1/8 in x 6 in x 3 5/8 in; 7.9375 cm x 15.24 cm x 9.2075 cm
ID Number
catalog number
accession number
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Work and Industry: Transportation, Road
Data Source
National Museum of American History
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