The DRIVESAFE EXEC is a Hand Held Breath Alcohol Tester which uses the same type of Electreochemical Sensor as does the British Police use in their Road Side Screening Instruments and is highly accourate,  user friendly and easy to read  screen prompts how to take a test. The drivesafe exec can be used in England, Wales, Sctotland and Ireland with their different levels of Drink Drive limits.