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Check your BAC (Blood Alcohol Content) level in seconds with the Keychain Breathalyzer from BrickHouse Security. This Breathalyzer features a color LED readout to let you know if you're over the legal alcohol limit.
To test your BAC level, hold down the test button for 10 seconds, exhale into the Keychain Breathalyzer, and then check the LED readout. Three levels can be displayed: less than 0.03 BAC, between 0.03 and 0.05 BAC, and greater than 0.05 BAC, signaled by a green, yellow, or red LED respectively.
The Keychain Breathalyzer runs on 2 AAA batteries. In addition to its primary function, the Breathalyzer has a built-in LED flashlight and LCD display for a clock and timer.