SafeDriving

We want to make a breathalyzer, that has a battery that lasts at least 1 year, we want to make it to a "keychain breathalyzer" that is 8cm in length and 5cm wide. it has to show the % of your drinking. We want a logo that says "SafeDrive" and wants it to look like the picture we uploaded. We would like to have it colored black.
We would like to receive it in some kind of package