Features： 1、HIGH ACCURACY: Breath alcohol tester uses sensitive semiconductor sensors that accurately show the alcohol content in your body, simple and practical for use. 2、EASY TO USE: Simple operation, just blow into the device for 4-5 seconds and the results will be displayed on the bright, easy to read LCD screen. 3、MULTIPLE APPLICABLE SCENARIOS: Small and lightweight, comes with a lanyard, easy to carry, ideal for weddings, holiday parties, banquets or other social events. 4、ENSURE DRIVING SAFETY: Measuring range is 0.000?0.199% BAC, detection accuracy is 0.005% BAC, important and necessary alcohol tester to ensure driving safety. 5、ABS MATERIAL: LCD breath alcohol tester adopts ABS material, safe and eco friendly, firm and sturdy, anti impact and stable, not easy to break, durable. Specification： Item Type: Breath Alcohol Tester Material: ABS Battery: 2 x AAA Batteries (Not Included) Measuring Range: 0.000-0.199% BAC (0.00-1.99% BAC or 0.000-0.995mg/l BRAC) Detection Accuracy: 0.005% BAC (0.05% BAC or 0.025mg/l BRAC) Package List： 1 x Breath Alcohol Tester 1 x Manual 1 x Lanyard