Why is calibration important?

A device which does not undergo calibration at some moment stops indicating properly. The lack of calibration makes a risk of sensor damage.

On our market there are no measurement devices which do not require calibration. Even the police regularly calibrate their devices (more frequently than a common user because their devices are also used much more frequently).

Calibration is essential because a breathalyser is a measuring device and may be out of adjustment as a result of common or incorrect use. A breathalyser which is out of calibration will indicate incorrect measurements and the person who uses it may be misled and the consequences may be huge.