Why do breathalysers require re-calibration?

How often does my breathalyser require calibration?

How do I know when my breathalyser needs recalibrating?

How much does recalibration cost?

Does Breathalysers Australia recalibrate other breathalysers?

Before sending us your breathalyser please email or call us first.
info@breathalysers-australia.com.au or 1800 881 196