Features:

• 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
• Professional features and quality, and made in the USA

Editor Reviews:

Product Description:
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 alcohol tester is FDA certified, and has a lifetime battery that is good for many years of daily use. It also has an advanced backlit display with simple plain English prompts. One button operation gives results in seconds.

Rating : - Reliable and Economical Peace of Mind
I am very pleased with this device. It has worked flawlessly and provided consistent and accurate results...All of this at a very affordable price. Its compact size makes it very convenient to discreetly keep on hand in needed situations. Definitely worth the investment!