A method of performing a calibration check process on a breath alcohol tester using a calibration station , the method comprising: establishing a fluid connection between the breath alcohol tester and a calibration standard with a known alcohol content; establishing a data connection between the breath alcohol tester and the calibration station; executing the calibration check process on the breath alcohol tester in response to user selection of a calibration check option on a main menu displayed on a display of the calibration station, the calibration check process comprising the steps of: opening the fluid connection between the breath alcohol tester and the calibration standard ; detecting the alcohol content of the calibration standard using the breath alcohol tester; closing the fluid connection between the breath alcohol tester and the calibration standard in response to the detecting operation; comparing, by the calibration station, the detected alcohol content with the known alcohol content of the calibration standard to determine if the breath alcohol tester passed the calibration check based on the detected alcohol content being within a predetermined tolerance from the known alcohol content of the calibration standard; and outputting a result of the comparing operation to a user. establishing a fluid connection between the breath alcohol tester and a calibration standard with a known alcohol content; establishing a data connection between the breath alcohol tester and the calibration station; executing the calibration check process on the breath alcohol tester in response to user selection of a calibration check option on a main menu displayed on a display of the calibration station, the calibration check process comprising the steps of: opening the fluid connection between the breath alcohol tester and the calibration standard ; detecting the alcohol content of the calibration standard using the breath alcohol tester; closing the fluid connection between the breath alcohol tester and the calibration standard in response to the detecting operation; comparing, by the calibration station, the detected alcohol content with the known alcohol content of the calibration standard to determine if the breath alcohol tester passed the calibration check based on the detected alcohol content being within a predetermined tolerance from the known alcohol content of the calibration standard; and outputting a result of the comparing operation to a user. opening the fluid connection between the breath alcohol tester and the calibration standard ; detecting the alcohol content of the calibration standard using the breath alcohol tester; closing the fluid connection between the breath alcohol tester and the calibration standard in response to the detecting operation; comparing, by the calibration station, the detected alcohol content with the known alcohol content of the calibration standard to determine if the breath alcohol tester passed the calibration check based on the detected alcohol content being within a predetermined tolerance from the known alcohol content of the calibration standard; and outputting a result of the comparing operation to a user. <EOS>