Solved my Rodent issue in a timely manner. I had a small rodent taking up space in the engine compartment of my truck. I tried a few natural methods (baking soda peanut butter,etc) also the ultra sonic and flashing light device. I did not want to use poison. I spoke to a local exterminator who suggested this device. Having used Victor traps in the past (Black Box) with success, I deceided to try this one out. The only modification I did was to screw the device onto a small piece of 2 x 6 lumber.