BACtrack Digital Breathalyzer
The BACtrack Digital Breathalyzer is a compact unit that fits on your keychain or in your bag or purse. Flip the folding mouthpiece, blow, and see your estimated blood alcohol level instantly on the screen in big LED digits. Three optional mouthpieces are also included if you want to test multiple people. Take BACtrack on the town whenever you’re out partying. Be sure to check your local laws for the legal limit near you (but seriously, just get a designated driver or call a cab, okay? Timmy needs you in his geek army!). $29.99
