The Pest-A-Cator line of pest control devices uses sonic waves and vibration to repel rodents and other pests. The Pest-A-Cator 1000, 2000 and Plus 2000 cause a slight phase shift in the timing of the electromagnetic field surrounding the wiring in the home, causing discomfort to pests and rodents. The PestVacator uses the same technology, but transmits an ultrasonic signal to rid an area of pests. They are easily plugged into any outlet in your home. The Pest-A-Cator Ground Rodent Repeller is a solar powered unit which generates sonic waves and vibration for an alternative to control ground rodents in your lawn.