8.3. Area Masking
In the event that there are objects, such as a bush or a pool, inside the detection area,
you are able to block certain zones by applying an area masking label.
In this situation you have a small tree that will give you false alarms if not masked.
1. First you must slide the lens holder and
remove it from the cover.
3. Decide which zone you need to mask, and remove the
corresponding strip. (In this case we
need to mask zone I)