It's called the Snap 50.

With a measuring accuracy of 0.1 % v/v alcohol, Snap 50 is the most accurate digital portable alcohol meter available on the market. The portable alcohol meter Snap 50 measures distilled spirits in all strengths within seconds: from pure distilled spirits to samples taken during watering down to drinkable strength and ready-to-drink spirits.

A few milliliters of sample are taken from the storage tank or cask and measured directly on-site. The alcohol meterautomatically compensates the temperature influence on the result and shows the alcohol concentration with an accuracy of 0.1 % v/v on the large display. There is no need for any extra calculations – just read off the values, store them or send them to a PC!

 

 

Click here for more info