Professional Digital Alcohol Tester SA 01 delivers precise BAC measurements with advanced semiconductor sensor technology. The compact portable design features a durable ABS shell and crisp LCD display for instant readability. Ideal for personal safety checks, workplace compliance, and law enforcement applications. Calibration-free operation with one-button simplicity ensures reliable 0.00-0.19% BAC range detection. Includes replaceable mouthpieces for hygienic multi-user testing. Engineered with auto-power-off to conserve battery life during frequent field use. Exceptional value proposition for bulk buyers seeking FDA-approved breathalyzers at wholesale pricing.