The electronic watchdog never sleeps always on dutywhos guarding your front door when you are out and about or after you went to bed what about a well trained guard dog with a hightened sense of hearing who keeps an ear out and starts barking as soon as anyone approaches your frontdoor thats what the dd01 watchdog does without all the drawbacks of owning a real dogapproaching intruders trigger an acoustic alarm in the form of a barking dog or a classic sounder tone the built in rada