Using a heat-sensor trigger, CatStop emits a burst of ultrasonic sound to repel cats that come within a localized area. The heat sensor covers about 330 sq.ft. in an 80° arc in front of the unit, with a range of about 20'. The noise frequency sweeps from 21 to 25 KHz, a range audible to cats but not to humans. At 124 decibels, it will startle a cat, scaring it away from the area.
Keyhole slots allow fence or wall mounting, or it can be set in the ground using the included stake. 9V battery not included. For outdoor use only. Weatherproof ABS housing.