The FC10Plus Portable Breath Alcohol Tester is the true workhorse of breathalyzers. Preferred by law enforcement and corrections professionals, the FC10 combines high precision, ease of use and ruggedness with affordability. The ASC FC10 includes both direct BAC testing and passive testing. Passive testing does not require a mouthpiece and is perfect for rapid "zero tolerance" alcohol screening of subjects and open containers. Known for its long life and fast recovery times, the FC10 is likely the only breath alcohol tester you will ever need. Automatic, Manual and Passive sampling modes Auto adjusting backlit LCD for excellent day or night visibility EasyTab mouthpiece eliminates operator contact with wet-end of mouthpiece Breath flow directed away from the operator Fastest response and recovery times in the industry Easy to understand user prompts step the operator through each test Audible and Graphical breath flow and BAC level indicators Exceptional battery life provides up to 6,000 tests Full Sized 1" Platinum Fuel Cell alcohol sensor ensures long life and reliability. Patented sampling and measurement algorithms Popular language options available Upgradable to FC10Plus and FC20