This is a digital professional breath alcohol tester. High quality and high precision, can respond within seconds. With the port to insert the nozzle, health and comfortable to use.Features:1. Easy to use, quick response and resume in seconds.2. High-tech breath tunnel design, advanced flatbed high-sensitivity sensor.3. Three units to convert (%BAC / 0.1%BAC / mg/L).4. Blue backlight LCD display, can see the result clearly even at night.5. Lightweight, easy to carry with you.6. Comes with 5 mouthparts to replace.Specification:Item Type: Alcohol Tester Material: ABSItem Color: As Pictures ShownBattery: 3 * AAA Batteries (Not Included)Package Weight: Approx. 192 g / 6.8 ozPackage Include: 1 * Alcohol Tester 5 * Mouthparts