1. Digital Alcohol Breath Tester Breathalizer 2.LED Backlight. 3.We passed ISO9001:2000 and have CE Certificate LED Digital Breathalyzer Alcohol Breath Tester BreathalizerDirections detailed on screen:Wait, Blow, Test, Read.LED Backlight.Digital Output.Slim & Compact.Broad Range.Quick ResponseLow Battery WarningRange = 0.00 to 0.200 % BAC BAC = Blood Alcohol ContentItem Specifications:Easy to use ...