Breathalyzer with 10 Mouthpieces A7

Features: Portable design,comes with a storage bag and 10 reusable mouthpieces. You can customize the warning and danger value according to local standards of drunk driving. The previous 123 times testing records can be tracked with this alcohol breathalyzer tester.  The digital breathalyzer test rating is adjustable with 6 common-used units (%BAC, ‰BAC, mg/L, g/L, mg/100ml, ‰PROM). Designed with built-in rechargeable batteries, no extral batteries required, USB is included, standby time is 2000 hours.