If you don’t have the time or the money to own a guard dog, there are some other alternatives that you can take to secure your home when you are out of town. Consider this barking dog alarm system for your home, where you don’t have to worry about anybody ever breaking in again. It barks like an angry guard dog, and senses motion from up to 25 feet away, through doors, walls and glass. As the intruder gets closer, the device barks louder and more frequently. Read more