Breathalyser there are many on the market, but they do not measure all the good, others see again terrible. Since I bought the tester as a gift for a friend, it was important for me to have to accept no compromises when it comes to measurement, design and feel. And since I came across the ACE AL5500 breathalyzer, which was my demands. The feedback of my friend is also very positive. I can only recommend the tester!
