How safe is your home, are your dog always on? i don`t think so. But i am sure this motion detector is ready 24 hours to standby right on your door. The detector that i mentioned is one from Smith & Watson. This electronic device able to detect any movement in 20-feet (6-meter) x 90-degree area and it will alert you with 130dB alarm when someone passing in the coverage area. The Smith & Watson Motion Detector is equipped with programmable keypad and available at www.buy.com for $34.17.
