Devices that plug into smartphones to augment the built-in sensors with additional smarts are continuing to make their way to market, many fueled by crowdfunding. Here's another contender aiming to ex
<img src="http://www.crunchgear.com/wp-content/uploads/2009/11/breathalyzer.JPG" alt="breathalyzer" title="breathalyzer" width="115" height="300" class="alignright size-full wp-image-126347" />Worried
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Behold the Chinavasion.com Breathalyzer Keychain Car Gadget with built-in flashlight and stopwatch. It costs a meager $4.43 — far less than other breathalyzer gadgets — and it seems