Digital Alcohol Breath Tester Breathalyzer Analyzer Detector Test Keychain Breathalizer Breathalyser Device Type: Alcohol Screening Size: 110*70*25mm Age: Adult Ecological: Organic Features: This is Digital Breath Alcohol Analyser Tester Breathalyser. Digital alcohol test with audible alert Quick response and resume Auto power off Use Mouthpiece Key chain Sensor: advanced semiconductor oxide alcohol sensor Range: 0.00-0.19%BAC & 0.0-1.9g/l (or 0.00-0.95mg/l BRAC) Accuracy: 0.01% BAC(0.1g/l) Use 2AAA alkaline batteries (NO INCLUDE)