breathalyzer, portable breath alcohol tester led screen with 10 mouthpieces for home use lencool <b>features:</b><br><br> auto-calibration & sensor fault self-checking system<br><br> fast response time <5 seconds<br><br> dual inputfor right and left handed usage<br><br> accuracy +/- 0.010% bac (0.1 g/l)<br><br> detection range: 0.000-0.1990%bac (0.000‰-1.999 ‰ or 0.000-0.995 mg/l)<br><br> displays results in ‰bac&%bac&mg/l<br><br> warm up time = 15 seconds response time = 5–10 seconds<br><br> battery life = approximately 200 tests<br><br> dimension: 117*61*26mm<br><br> powerinput: 3*1.5 v “aaa” battery (not included)<br><br> <b>package included:</b>alcohol tester * 1<br><br>mouthpieces * 10 pcs<br><br> , user manual * 1<br><br>cloth bag * 1<br><br>