ALCO XS™ is designed specifically to meet the new “Manila Amendments” to the Standards of Training, certification and Watchkeeping (STCW) – you should check your current breathalysers to see if they have the required accuracy to meet these new limits as many don’t. The ALCO XS™ is a unique new marine breath alcohol tester (breathalyser) that never requires re-calibration. ALCO XS™ saves you a fortune compared to your conventional breathalysers which need sending ashore for annual calibration or worse still, annual replacement of the whole breathalyser which is an extreme waste.