A:Answer It has various sensitivity settings, however I don't have Pets for property judgement. Mine would occasionally go off when shadow streaked across wall. Sensitivity settings stopped this, however, False alarms can be minimizedfor pets. Neat thing about alarm is you can set it to silent and system will sent you an image of room when Alarm was activated by motion. Or you can just look & listen into room remotely to see what is going on before call to Police or neighbor.