HUMANE & CHEMICAL-FREE DETERRENT -- This ultrasonic under hood rodent repellent works by emitting high-frequency sound waves beyond normal human hearing and flashing lights. No poison, traps, or strong smells.
COVERAGE & PLACEMENT TIPS -- Each rat repellent device is designed for areas up to about 300 sq. ft. For stronger rodent problems, using multiple ultrasonic pest repellers and placing them near entry points or activity paths may help improve results.