A wearable device is hoping to track how much alcohol is in a person’s system.

The Proof wristband connects to a user’s phone and sends alerts when their blood alcohol level is high.

The wristband has LED lighting and vibration alerts.

The device sends alerts to a user's phone | Image: proofwearable.com

It also allows users to set pre-selected Blood Alcohol Concentration (BAC) levels.

 

A disposable cartridge system in the wristband measures alcohol levels through perspiration.

While a rechargeable battery in the device will last for up to four days, the manufacturer says.

How it all works | Image: proofwearable.com

One cartridge will provide over 12 hours of alcohol tracking.

The band is set to be released in the US later this year – with an estimated cost of between US$100 and US$150 (€94 and €141).

The company behind the wristband reportedly plans to launch a crowdfunding campaign.

The device was showcased at CES 2017 in Las Vegas - the world's biggest tech show.