Portable Breathalyzer Digital BAC Tester w/ 20 Mouthpieces for $21 + free shipping w/ Prime

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This breathalyzer drops to $20.99 after the clipped checkout coupon, down from $39.99. The discount runs through October 3. Buy Now at Amazon Features Uses a high-precision sensor to deliver blood alcohol content readings Tri-color LCD display shifts from green to yellow to red with an audio alarm Includes 20 washable, reusable mouthpieces Measures 6.4" x 2.8" x 1.3" and weighs about 3.9 oz. Warms up in 10 seconds before testing Automatically powers down after use to save battery

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