Because PIR sensors are sensitive to moving, heat-radiating sources, they can be triggered by animals as well as humans. To avoid this false alarm hazard, do one of the following: Use a sensor with pet immunity Use a sensor with a pet alley...
A Dog A...
Seal PIR entry holes, especially where cables come through the wall Insects or airflow can cause false...
Avoid radiators, fireplaces, heaters, etc. When they cycle on and off or cool off it can lead to false...
Avoid aiming at fax or...