The single-use breathalyzer in accordance with N.F standards, calibrated at 0.5 g/l of blood (0.25 mg/l of expired air).
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The breathalyzer from Contralco is a single-use breathalyzer that measures the alcohol content in a person’s expired air. The breathalyzer indicates whether this alcohol level is above or below the threshold for which the device is calibrated. The result is read by the color of the reagent which changes from white to red.