Features: Each one supplies with extra 4 mouthpieces. When alcohol content exceed the standard, it will alarm and remind you it might be "dangerous" now, it's very useful for driving after drinking. Except above that, it has a vice function that is also used as a key chain, the equivalent of three products if only you purchase it.
There is autopower off function, saving energy and economy. Low voltage indicator help you save much money and make you environmental. Quick response and resume, fully needn't to worry about its professional level to test alcohol, red-colored backlight make the detector display more clearly, even though it is in the night.
Specifications: Sensor : Advanced semiconductor oxide alcohol sensor Warm-up time : Within 10 seconds Respond time : Within 5 seconds Operating temperature range : 5 ~ 40°C Detection range : 0.00-0.19%BAC & 0.0-1.9g/l(or 0.00-0.95mg/l BRAC) Accuracy : 0.01% BAC(0.1g/l) Digital display results (% BAC/g/l) Power by : 2 x AAA 1.5V alkaline batteries (for little gadget safe and fast shipping, we did not included it for you)