3 digitals LCD Display Breath Alcohol Tester Analyzer(Black)

Feature: 1) Advanced NM Hot-wire alcohol sensor 2) Quick response 3) Smart MCU control 4) Ditect testing process LCD indication 5) Digital LCD display with light blue backup 6) Portable and fashion design 7) Sensor Fault self checking 8) Battery saved design, low voltage indication 9) Applicable to driving and dangerous work