Breathalyzer Keychain Car Gadget – Flashlight Stopwatch. New mini-breathalyzer that fits right on your keychain! Never again have a doubt about how much alcohol you have had to drink or whether you or your friend is legally OK to drive. This mini breathalyzer has a traffic light readout style system making it super easy use. Simply blow for 5 seconds then wait. A green indicating light and you are good to go; yellow and you may want to wait a while before you go home; while red indicates you should hand your keys to a friend. This is great reference tool for seeing if you have had just a little too much to drink. Note: This is a reference tool only and can not be used as a legal defense. The result of this test gives BAC for reference only. We do not take any legal responsibility Features Stopwatch Flashlight – Red LED Light Test Accuracy: .01 BAC (.1g/l) Specifications Analyzing Method: Breath Test Sensor: Advanced semiconductor oxide alcohol sensor Screen: LCD Display for Time/Timer Alcohol Reading: 3 LED Light – Green, Yellow, Red Range: 0.00~0.19 BAC 0.0~1.9g/l Alert Mode: Safe: Green LED Light – 0.0% ~ .02% BAC Caution: Yellow LED Light – .02% ~ .05% BAC Danger: Yellow and Red LED Light – equal or over .05% BAC Power Source: 2x AAA Batteries Dimensions: 80mm x 38mm x 20mm (L x W x D) Package Contents Breathalyzer Keychain Manual