digital alcohol tester 1.alcohol tester,Breath alcohol tester 2.digital breath alcohol tester 3.alcohol tester digital alcohol tester1.alcohol tester,Breath alcohol tester2.digital breath alcohol tester3.alcohol tester,testThree test steps with LED indication A type: 0.00 to 0.02% BAC (green LED): safety 0.02 to 0.05% BAC (yellow LED): caution Over 0.05% BAC (red and yellow LED): dangerB type: 0. ...