This digital alcohol tester helps prevent drunk driving and travel safely. Quick response and resume, easy to operate. Small size with key chain, lightweight and easy to carry.Features:A simple method to analysis Blood Alcohol Concentration at anytime and anywhere.Helps prevent drunk driving and travel safely.Quick response and resume, easy to operate. Small size with key chain, lightweight and easy to carry.Digital alcohol tester with audible alert. LCD display gives you clearer view.Environment and healthful. Blowing design with 10pcs/20pcs/50pcs mouthpieces(optional) for multiple users.Specification:Condition: 100% Brand NewItem Type: Alcohol TesterColor: BlackMouthpieces Qty: 10pcs, 20pcs, 50pcs (Optional) Battery Type: 2pcs * 1.5V AAA Batteries(Not Included)Range: 0.00 -0.19% BAC, (0.0-1.9g/l)Pre-heat Time: Within 10sCorresponding Time: Within 5sWorking Temperature: 5 ~ 40Auto off: approx. 1 min Size: approx.112 * 68 * 22mm/4.4 * 2.7 * 0.9inchPackage Weight: Approx.63-111gPackage list:1 * Alcohol Tester (Batteries Not Included, No Backlight)10* Mouthpieces 1 * Manual