Keep mice, rats and other pests out of your home with the superior technology of Rid Rite Electronic Pest Control Systems. Rid Rite pest control sytems emit an ever changing pattern of ultrasonic frequencies to help control pests and keep them out of your living space. It’s easy to use just plug into any wall outlet. Each unit has Perimeter ControlTM which projects signals into the main areas as well as along the walls and baseboards where pests travel. The variable soundwave pattern prevents pests from adapting to one signal. The indicator light glows blue when the unit is active. Rid Rite Electronic Pest Control Systems provide year-round protection without the use of harmful chemicals or traps. Each system is pet and children safe. Pests hear the sound, you and your pets don’t.