Digital Handheld Dual LCD Blood Alcohol Breath Tester Analyzer Detector

  This is a dual screen display breath alcohol tester of alcohol testing, temperature measuring, timing and alarm time functions.It's a practical gadget for daily life using.     Features: Dual LCD screen display:Clock LCD and Alcohol tester LCD Breath alcohol concentration testing Can measure atmospheric temperature around Count-down timing for kitchen using Clock and alarm time function Quick response and resume capacity Threaded by strap in order to be more convenient carrying Auto power off for saving batery Buttons: POWER, MODE, SET, ADJ   Functions: Alcohol test Press the "POWER" button once, the sceen will display 10 or 15 seconds count down indicating the tester enters into "warm up" mode.When the "blow" symbol displayed and 10 seconds count down started, indicating the tester is ready to test.Exhale pneuma into breath inhaler for 3-5 seconds, then read the result from the alcohol tester LCD. The "Caution" symbol will be displayed if the alcohol concentration is the level betw