BreathKey Keychain Breathalyzer – World’s Smallest Breath Alcohol Tester

World's smallest and lightest breath alcohol tester - weighs less than an ounce
The only consumer breath tester to use fuel cell sensor technology, the same type that is used in police equipment
Accuracy certified by the FDA to be +/- 0.010% at 0.080% BAC (blood alcohol content)
Lifetime battery that lasts for many years with daily use
Designed and manufactured in the USA BreathKey is the smallest and lightest breathalyzer in the world, but it is big on features and quality. Unlike other bulky breathalyzers, it easily fits on a keychain so you can take it with you wherever you go. And it is the only consumer breathalyzer at any size or price that has a fuel cell alcohol sensor, the same type that is used in police equipment. The BreathKey breath alcoho More »