The AlcoSense Ultra breathalyser uses the same sensor as several police-standard units to deliver accuracy and ease of use.
It uses a professional-grade sampling system to ensure that only the most accurate part of the breath is measured, and readings are fine-tuned according to temperature.
It also coaches the subject how to correctly give a sample.
A full-colour 48mm screen gives clear traffic light readings, and the unit can calculate how long until the user is fit to drive and set an alarm to re-test.