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. Analyzing Method: Breath Test Sensor: Advanced Semiconductor Oxide Alcohol Sensor Screen: LCD Display for Time/Timer Alcohol Reading: 3 LED Lights (Green, Yellow, Red) Range: 0.00~0.19 BAC & 0.0~1.9g/l Test Accuracy: .01 BAC (.1g/l) Safe Indication: Green LED Light - 0.0% ~ .02% BAC Caution Indication: Yellow LED Light - .02% ~ .05% BAC Danger Indication: Yellow and Red LED Light - equal or over .05% BAC Stopwatch Flashlight: Red LED Light Power Source: 2x AAA Batteries Dimensions Main product dimensions: 80x38x20mm (L x W x D) Product Notes The result of this test gives BAC for reference only, Consumersave does not take any legal responsibility Batteries not included Package Contents Breathalyzer Keychain User Manual 3 Months RTB Warranty!