Just attach one of the breathing tubes to machine and turn on. The machine counts down and tells you when to blow. The reading comes up immediately. Just attach one of the breathing tubes to machine and turn on. The machine counts down and tells you when to blow. The reading comes up immediately.

This is great and a small price for safety. We\ve tested it and it works. This is great and a small price for safety. We\ve tested it and it works.

This breathalyzer is a good buy. I like the peace of mind, and the extra mouthpieces come in handy because it is quite popular in a crowd. This easily fits in a purse or the glove compartment in your car. This breathalyzer is a good buy. I like the peace of mind, and the extra mouthpieces come in handy because it is quite popular in a crowd. This easily fits in a purse or the glove compartment in your car.

This is a very good tool to have when you just want to double check This is a very good tool to have when you just want to double check

Sehr gut zum selbsttest Sehr gut zum selbsttest

bello funzionale pratico bello funzionale pratico

Fungerer fint og alle testene sier dem er best i forhold til pris. Godt kjøp. Fungerer fint og alle testene sier dem er best i forhold til pris. Godt kjøp.

It works pretty well with no problems so far, and it appears to be accurate. It works pretty well with no problems so far, and it appears to be accurate.

This little portable breathalyzer machine is pretty cool. It\s easy to use and really works! This little portable breathalyzer machine is pretty cool. It\s easy to use and really works!

Works great Works great