The most cutting edge and most advanced unit in the AlcoHAWK line of breath alcohol testers, the AlcoHAWK PT500 Breathalyzer features a simple, menu-driven operation that allows you to quickly and accurately screen for the presence of alcohol from 0.00 - 0.400% BAC. It incorporates a PT Core fuel-cell sensor that is not subject to the interference from acetone. Acetone may be found in individuals with diabetes or individuals on strict low carbohydrate diets. The PT500 also offers enhanced linear accuracy, which means it will provide more accurate results over the complete range of alcohol concentrations. This is the ideal unit for zero tolerance testing, law enforcement roadside screening, corrections, probation officers, substance abuse clinics, boating, military, and many other areas of personal or professional testing where fuel-cell accuracy and reliability is required.