The BreathKey Keychain Breathalyzer is the world's smallest and lightest breath alcohol tester! Yet, its performance is that much precise as the professional devices used by the police. It is FDA certified, and uses a battery that lasts for many years of daily use. It features an advanced backlit display with simple prompts, as well as a one-button operation to show results in seconds!
Click here to buy a Breathalyzer on Amazon.co.uk or here to check out availability on Amazon.de