Calibration - Drager Alcotest 5820Were proud to offer a professional re calibration service for the Drger Alcotest 5820 Breathalyser, one of the most reliable and trusted alcohol testing devices in the industry. As per Australian Standard requirements, the Alcotest 5820 needs to be calibrated every 6 months to ensure accurate and consistent results. Our calibration service guarantees your breathalyser is performing at its best, meeting AS 3547 standards for precision and reliability.