Professional Key Chain Digital Breath Alcohol Tester diy_home been tested and proven to

been tested and proven to be safe

it attaches securely to the back of your seats

lighting range is about 200 - 500MPowered by 3 x 18650 battery ( not included ) Voltage: 3

and tightens the skin

Supports Charging: Feel free to charge your phone simultaneously and save time charging it

Professional Key Chain Digital Breath Alcohol Tester diy_home been tested and proven toFeatures: 1, Professional airway design, accurate measurement results2, Three alcohol units of measure conversion (% BAC BAC mg L)3, Fit for testing alcohol density in the air, driver, etc. 4, Rapid response and recovery5, Automatic shutdown6, Alcohol overrun automatically sound an alarm7, Sensor fault self8, Low battery indication9, The mouthpiece can be replaced, distribution 5 mouthpieceTechnical parameters: Warm up time: 15 seconds or lessResponse