Features:1. Digital alcohol test with audible alert; 2. Range: 0.00-0.19%25 BAC & 0.0-1.9g/l; 3. Quick response and resume; 4. Auto power off; 5. Easy to operate and Carry; 6. Ensure your driver is safe; 7. Requires 2 x "AAA" alkaline batteries (not included). Package Included:1 x Alcohol Tester 1 x English Manual 1 x Strap