Key features

• •【SENSITIVE AND HIGH ACCURACY】: The device is equipped with a high quality fuel cell sensor module for a long life and accurate results. Do not use the breath analyzer until it has been 20 minutes since the last drink; please wait at least 3 minutes to begin next test after last test. it warned audio and video, warn you.
• •【COMPACT & LIGHTWEIGHT】: Only weighing 0.92oz, it is small enough to fit in a purse or pocket or even you can use it as a keychain.
• •【ENERGY-SAVING】: It can set automatic shutdown. Powered by one AAA batteries (not included but usually available), automatically shut down after 5 seconds to save power. Every time you install a battery, you can test more than 80 times. In addition, low power instructions are designed.
• •【EASY TO READ】: Blue LED display makes it easy to read even during night viewing. It has an auto shut off to save power after you have finished. LCD screen flicker alerts you of a low battery condition.
• •【WARRANTY】: Please tell us if you are not satisfied with our products, We will give you a full refund and try our best to improve our products and service. In order to let our customers buy this breathalyzer with confidence, we supply unconditional 30 days refund or replacement.