Product Features: Breath tester LP gas detector Lighting Key ring Patented recalibration function by user Display: 55 signals (green, yellow, orange, bright red, and dark red) The LED will display a color according to the user's blood alcohol concentration Purpose: Prevention of drunken driving Gifts for friends & family Specification & Certification: Dimensions : 5.7 x 3.4 x 1.3cm (2.24" x 1.34" x 0.51") Weight: Approximately 31g ( including 1 AAA battery) CE, TUV
