Compare BACtrack Ultra-Portable Keychain Breathalyzer (BT-KC10-GN) - Green

Equipped with an Advanced MicroCheck alcohol sensor that determines BAC quickly and accuratelyOne button operation allows you to simply press power and you can begin testing in secondsBAC results are displayed on a crisp, easy-to-read LED displayUltra-compact design fits inside a purse or pocket and can be used as a keychainIncludes 3 reusable mouthpieces Extended battery life uses one AAA battery, and is good for up to 150 tests