One of the greatest fears of man is running into a big animal predator. The greatest predator today facing modern man is the dog. You rarely find a lion, tiger or an alligator in the city. This is why dogs make good house guards. Even the sound of barking dogs will cause panic in the most hardened criminals. This is the premise behind the barking dog alarm.

A barking dog alarm is programmed to bark like an angry big dog the alarm is tripped. It is a cheap but effective alarm system. Would be robbers would think twice before entering your home. Most barking dog alarm is a modified motion detector. Once the alarm is tripped dogs will bark and the lights in your house will turn on.