- Quality Material: Made from PP, this Test Tool Breath Alyzer is durable for home or professional use. - Professional Accuracy: Delivers BAC readings with professional grade accuracy, with a compact size of 9.8 x 4.7 x 2.31 cm (3.86 x 1.85 x 0.9 inch). - Compact and Portable: Weighing about 70 g, this Personal Breath Alyzer Tester is lightweight and easy to carry in your car, bag, or pocket. Suitable for use at parties, banquets, or social gatherings to help ensure secure driving after drinking. - Voice Alerts and LED Color Display: Provides clear feedback with sound alerts and LED indicators: green for standard levels (0.00-0.019), yellow for caution (0.020-0.079), and red for drunken (0.08). - Use scenarios: Use in the car after a night out to check readiness to drive, at events or gatherings to assess impairment before leaving, or at home to verify safety after drinking before operating a vehicle.