BACtrack's most affordable professional breathalyzer, the Scout utilizes BACtrack's patented police-grade Xtend® Fuel Cell Sensor Technology to deliver accurate and reliable BAC results at the touch of the button. Simply power on your device and take a test - it's that simple! The Scout's slim form factor makes it easy to take with you anywhere, easily fitting into a pocket or purse. The BACtrack Scout also features an incredible battery life, lasting up to 1000 tests on a single set of AAA batteries (included). Make better decisions while drinking with the small, yet powerful BACtrack Scout.