Electronic Breathalyzer Breathalyzer Reusable Portable Rechargeable Alcohol Tester Digital Lcd Display (black, 2815.3x96.7mm) Jiujiuso The product is shipped based on the color or size of the main image of the product page. Sound AlarmWith 3 colors to remind you of the blood alcohol test result. They are green means safe, yellow is warning and red is danger. If the measured value is equal to or higher than the alarm concentration, the breathalyzer will turn on the red light and emit a prompt tone at the same time. Healthy and hygienicThis alcohol meter does not require lip contact, just blow directly into the air nozzle. You don't need to use a blowtorch (the blowtorch can multiply bacteria), which reduces direct contact and makes the test more hygienic. Small and portableThe blood alcohol tester portable mini size is small and fits easily in a purse or pocket, hangs on a key ring or fits in a car. Take it with you wherever you go and make sure your loved ones are safe with it. USB ChargingBlood alcohol tester easily charged via USB cable It can be charged using phone charger or computer USB port. The breathalyzer will automatically shut down to save power when no operation. Easy to usePolice breathalyzer meticulous, please press the power switch for 2 seconds to turn on the breathalyzer. Make them wait 10 seconds to warm up. Blow for 5-10 seconds, the result will be ready in seconds and it will show on the LED screen for 10 seconds. Number of pieces delivered: 1 Color: Black Size: 2815.396.7mm