BACtrack Keychain Breathalyzer is helpful for testing breath for the purpose of knowing it has alcohol or not, if it has alcohol then it is in requirement amount or it has exceeded the limit imposed by the law depending on the low of any particular country. So this is a good breathalyzer to test BAC (blood alcohol content). This alcohol detector is very small breathalyzer so that it can be put in a pocket, you can carry it anywhere you go, that’s why it is known as pocket breathalyzer. It is built in advanced technology that is helpful for checking alcohol presence in breath very easily and quickly.
This device can be used for testing multiple users as it doesn’t touch your lips, you just need to through your mouthpiece to record the breath and you will get the result.