The Mark V is DOT/NHTSA approved and uses a precision Electrochemical Fuel Cell to provide reliable and accurate test results. The fuel cell responds directly and proportionately to Breath Alcohol Concentration (BrAC), with a stable lifespan. The "proprietary" electrochemical fuel cell is particularly sensitive to alcohol, but is not responsive to acetone or any other breath substances.
NHTSA (U.S. DOT) APPROVED Evidential Testing Device
*Only for sale and available for use in North America