I purchased this for my son. The first time used, was at a holiday party and it worked great. He was very surprised to see it register 'over the limit' on people he didn't realize had been drinking too much to drive. If this saves one family member's life it is worth a thousand times the cost, and more.Get more detail about Digital Alcohol Breathalyzer, Breath Tester, Portable Blood Alcohol Content (BAC) Detector with Bi-color Backlight LCD Display, Clock, Alarm & Thermometer, for All Safety Drivers, Avoid Tickets & Save Money.
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