DESCRIPTION
Max mounting height 12 m.
Detection radius about 4 m.
Advantage microwave:
-sensitive to minor motion
-sensitive to radial movement
-can be reflected by objects hence covering big detection area
-resilient to heat source, smoke and air conditioner
Disadvantage microwave:
-penetrates walls, picks up motions outside the area
-back wave detection, false trigger by motions at the back
-can be false triggered by ventilation fans, water pipe, elevators etc.
