Now, smart watch to alert you if you`re too drunk to drive

London: Too drunk to drive? Your watch can tell!

Engineers have developed a new watch, with a built-in breathalyser, that warns you when you`re too drunk to drive. The Kisai Intoxicated`s sensor is made from stainless steel and features an LCD display. It reads the alcohol level in your breath and judges if you`re too tipsy to climb behind the wheel. Users have to simply blow into the side of the watch after boozing and the screen turns red if they`re over the limit. "The display on the right of the screen shows 10 different levels of blood alcohol content. A green display showing 0.00 per cent means you`re sober. A yellow display showing between 0.41 and 0.60 per cent means you`re buzzing. A red display showing 0.61 per cent or above means you`re drunk," according to TokyoFlash, the Japanese makers of the watch. The snazzy-looking digital watch even features a sobriety game that lets you test your reaction time between drinks, The Sun reported. The gadget will cost 65 pounds. It uses a rechargeable battery which takes 3 hours to charge. Based on average use of the breathalyser, the battery should last for one month on one charge and has a lifetime of over 300 charges. As well as an integrated breathalyser, the watch has date, time and also an alarm mode. PTI