The STI electronic watchdog Rex Plus II alarm protects your home from thieves and criminals with the threat of ferocious dogs just behind your door! The Rex watches up to 26 feet away through your door with radar technology to detect when people approach. As people get closer the barking increases in intensity and decreases as they back away, just like a real dog's barks would. Requiring only to be plugged into a regular household outlet (or six C batteries) this dog is low-maintenance!
The Rex Plus II can also be switched to a friendly store chime for store owners during the day or sirens in the evening when you close up.