Under Hood Animal Repeller with Strobe Light & 3 Power Supply Methods, Safe Ultrasonic Pest Repellent Battery Operated Rodent Deterrent Keep Mice Rat Squirrel Away from 12V Car Engine Truck RV, 2 Pack

I have one in a BMW that doesn't get driven much and sits in a garage. I had to clean a mess several times and tried peppermint oil spray which also works but requires repeat spraying to keep rodents out. I installed Rodent Repellent for Car Engines with Two Ultrasonic Modes & Evictor Flashing Lights in the engine compartment using a 12V sealed acid battery with a solar panel to keep it charged so the car battery is not discharged. No more pesky mice! I bought two more units and use them in my gas grill and my patio furniture also with a solar panel to charge a battery os they are aways on and working great! --Rokslyd--

I have been having issues with mice getting into my fan for my blower and this seems to have taken care of the problem. I really like that it also has a low voltage alarm so of my battery is low I also will know and can plan for a new battery instead of possibly being stranded when my battery dies.

Got a 4 pack of under the hood rodent repellers. They seem to work when trying them out with the USB connector. Then I realized that the 4 pack only has 2 under the hood connectors and 2 USB connectors. If buying for under the hood use, I suggest looking at the pre wired for under the hood (vehicle use) rodent repellers.

I bought this to use on my tractor which had mice damage, chewed wire. So far it has worked at keeping the mice out but I also use sent deterrent so not sure which works better or a combination of both. I keep a battery tender on the tractor since it is not in use on a regular basis so have had no issues with it. But I also used one in my car that has had mice in the engine bay multiple times, thankfully no damage. I do not keep a battery tender on the car and this device will drain the battery to I think 9 volts before it alarms you that the voltage is too low. That is too low and will damage your batter. I do not drive this car but maybe one or twice a week and the battery went down to 5 volts and I couldn't get it to recover and had to buy a new battery even though this one was only a couple of years old. I now keep a battery tender on the car as well and no more issues.

I don't see anymore feces around the engine compartment. I put one by the outside material racks that those critters also roam around and I don't think they're coming back soon hopefully not together with some rodenticide rat bait I believed the colony that resides under the house crawl space and attic all died.

Works with batteries or plug in but not as indicated for ground hook up. Not sure if it works past that. Returned it.

I enthusiastically and desperately bought this gizmo to combat my ongoing battle with the mice in my car. I haven’t seen any difference in the rodent hotel.

It took me about 20 minutes to install, and I'm very satisfied with the product. I recently found rodent poop on the valve cover of some vehicles I have in storage. I wasted no time in looking for a solution, and I came across this pair of rodent Repeller's. I installed them and checked back in a couple of days to see if I would find any traces of rodents. I'm happy to say, I did not find anything. The Repeller's are working great!