Alcohol meter

The latest Tokyoflash watch (Japan) comes with breath analyzer to determine the sober state or drunkness of the carrier.

When the person blows air into the sensor hidden next to the Kisai Intoxicated watch , the screen changes color depending on the alcohol content detected.

Kisai Intoxicated Watch - (Photo: Tokyoflash Japan)

For example, green means sober, yellow is a shock, and red is dull.

Clocks can also be used to test the reaction time to determine whether the wearer has over-drunk or not.

According to Engadget, Kisai Intoxicated is made of stainless steel and weighs about 160g. It's water resistant and battery-charged.

Tokyoflash is not the first to announce the immediate availability of alcohol in the body.

In March, Breathometer in San Francisco (USA) introduced a breath analyzer attached to a mobile phone, iPhone or Android, to measure instant alcohol.

By April, the BACtrack mobile app was launched, allowing users to update their drunken status to Facebook or Twitter, attracting more people to join the game.