No more costly repair bills, and dirty messes in your engine compartment.
This is not a sonic device, it uses LED light technology which causes the rat's iris to contract and expand repeatedly causing eye fatigue, disorientation and nausea, which encourages the rat to find a new territory. No need to worry about draining the car battery, it uses less current than the digital clock or other phantom draws from the car battery !
Poison can be used to eradicate these invaders, but that has two undesirable effects.
First, their predators, such as owls and hawks, may be poisoned in the process. That is both ecologically and environmentally unsound and self defeating Secondly, if their nest is left undisturbed, others will move in and take possession of their abandoned home.
The best cure is to discourage them from nesting right from the beginning, and that is what the Rid-A-Rat unit is designed to do!