This breathalyzer is calibrated for accuracy, providing clear feedback with easy-to-understand color indicators for different BAC levels. It has a compact and lightweight design with USB-C fast charging and a bright, crisp LCD. The price drops from $39.99 to just $29.99 when you clip the $10 off coupon on the product page. Shipping is free for prime members or on orders over $35.

Clip the $10 off coupon.