... 1. Alcohol tester with light 2. digital alcohol tester 3. suit for iPod touch5,iPhone5,iPad4,iPad mini 4. No need battery Backlight Alcohol Tester for iPod ... technology , which can detecting the more actual alcohol content of gas 2. LCD digital display and colour backlight screen can ... result.if there is no detection to alcohol or alcohol content normal,the LCD screen keep green5.If test report can ...