Cat Stop catstop Cat StopThe CatStop detects animal intruders and emits a high decibel alarm which startles them away. The CatStop keeps cats out of your flower gardens, yard or anywhere you don't want them to be. It's easy to use. Place the unit facing the area you want to protect. The built-in motion sensor detects the animal entering the area and emits a piercing, high decibel alarm. It startles the cat and frightens it away. Since the sound is ultrasonic you and your neighbors cannot hear it. It operates for up to nine months on one standard 9 volt battery. [Battery life estimate is based upon 4900 activations spread over 245 days at an average of 20 per day.] The CatStop protects about 330 square feet (20 feet or 9m in front of the unit in an 80 degree arc). There are no controls or adjustments. Simply install the battery and position in your garden. Availability: Usually ships the next business day. Cat Stop CS$47.95 Cat Stop cat deterrent. Catstop cat deterrent.