L101 Alcohol Breathalyzer Tester And A Keyholder

0.95mg 1a 5v 200mah Built-in large capacity large capacity battery led LED high contrast

adopts high sensitive Alcohol Breathalyzer Tester battery power supply blowing design avoids company annual meetings high contrast screen High precise design high sensitive chip intelligent semiconductor sensors Non-contacting blowing design represent non-drinking state represents drinking state represents drunken state three-color detection indicator traditional battery power USB quickly recharging