Check out the new Kisai Intoxicated watch from Tokyoflash that has an in-built breathalyzer that can tell the user if they are over the drink drive limit or if they are safe to get in their vehicle and toddle off home!
All you need to do is blow into the sensor and wait for the LCD to change color. Green means you are sober and good to go, yellow means you are buzzed and red is well and truly over the limit. It even has a mini-game so that you can test your reflexes if you really want to be sure! Continue Reading