If you like to go out on the town drinking then the Breathalyzer Keychain is a must have item. The Breathalyzer Keychain does exactly what it says and can be carried wherever you wish whether it be the pub, club or casino.
The Breathalyzer Keychain is very easy to use all you do is hold down the power button until the LED turns green and then you blow across the top vent and if it remains green then your under 0.05% BAC*. If a yellow LED appears you’re very close to being over the limit and therefore finding another mode of transport for the night would be smart. If the Red and Yellow LED’s appears then your must start dialling for a taxi.