The main difference is the level of precision in the displayed Blood Alcohol Concentration (BAC) reading.
2-digit breathalyser: Displays BAC to two decimal places (e.g. 0.05% BAC).
3-digit breathalyser: Displays BAC to three decimal places (e.g. 0.050% BAC), providing a more precise reading.
Which is more accurate?
A 3-digit breathalyser offers a more precise reading because it displays an additional decimal place. However, the overall accuracy of a breathalyser depends more on the quality of its fuel cell sensor, regular calibration, and proper use than simply the number of digits displayed.
For personal use, both 2-digit and 3-digit breathalysers can be reliable if they use a professional-grade fuel cell sensor and are maintained according to the manufacturer's recommendations Should you further questions please contact us at support@andatech.com.au
Should you need further assistance please contact us at support@andatech.com.au.