A special sensor detects these vibrations and reduces them to one single signal within a period of a few seconds. This signal is processed by the counter unit and added as a shot on the displayed value. All unit are pre-adjusted in our factory for use under normal conditions. The units are not affected when the archer rests his bow on the stabilizer. However, if some archers want to have a more or less sensitive unit, all arrow counters have an inside sensitivity regulation screw.
All units have a one year warranty term if used in normal conditions.