PFT-642 Digital Breath Alcohol Analyzer 1,with mouthpiece 2,with Clock 3,logo print 4, ... digital display PFT-642 Digital Breath Alcohol Analyzer Features: 1Sensor: Semiconductor alcohol sensor2Warm-up time: Within 10 seconds3Respond ... timer11Unit Packing: Factory standard box PFT-642 Digital Breath Alcohol Analyzer