PRO-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Scout utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement. ONE-BUTTON OPERATION - The BACtrack Scout is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer and begin testing. It's that easy. DOT/NHTSA COMPLIANT - Designed to meet the rigorous standards of expert alcohol testers, from roadside law enforcement to hospital employees & treatment professionals, the Scout is compliant with US DOT & NHTSA regulations for blood alcohol screening devices. SMALL & PORTABLE DESIGN - This handheld breathalyzer fits easily in a purse, pocket, or car, so you can always have it when you need it. ONE-YEAR WARRANTY - If your BACtrack Scout ceases to function properly during the first year of operation, we will repair or replace the defective device.