Ultrasonic Rodent Repellent for Car Engine – Battery Powered Under Hood Mouse Repeller with Flashing Strobe Light, Keeps Rats and Mice Away from Vehicle, Automobile, Truck, Garage, Attic, Barn, Shed

How bad was my rodent problem? My auto insurance agent told me that my vehicle was his first total lost due to rodent damage in 35 years. Our late model Honda became a 5-Star resort for mountain mice. Under every seat, behind the dash, in the AC vents, in the headliner and even in the door panels they resided. Snacked on the wiring and ate all the paper work in the glove box. I placed two of these ultrasonic units under the hood of our new Honda. So far, no trace of any mice. I drive the new vehicle everyday and May 01st, was 60 days operating and the AA batteries are still providing power. The units flash white and green strobes. I’m partially deaf, so I can't hear the ultrasonic sound it emits. I’ll do another update in several months. At this time, the product is working.

ours (ZN-509) is utilized beneath the belly of a trike which lives outside under a bike cover & a metal carport when not in use. our bike mechanic discovered a 'nest' (of some sort) fashioned in the compartment which houses the air filter of our trike last winter during annual "winterizing" & regular maintenance. at a loss, we decided to give this gizmo a try since our options are relatively limited. thanks to fellow, kind, community members' reviews, we bought this Loraffe model for the trike situation & another 'big brother' Loraffe for our 10'x12' metal shed out back (the much larger, triangular shaped, "4-in-1" model w/ two speakers & flashing LED's). both products have been used for a month & so far, so good! the one in the shed is plugged in 24/7 & the one on the concrete carport pad beneath the trike (this model above) runs on batteries. we haven't had to replace the batteries yet after 1 month but it's only "on"/ running during the evening & wee hours of morning. i see no indication of any rodent invasion in or around the trike since appropriating this unit about a month ago... again, so far, so good. i like the compact size of this model & might imagine it could impart lots of beneficial uses in a wide variety of places or applicable situations. iow's, it's small & portable & will run w/ standard AA's (3). yes, it's made in China. yes, it comes w/ a 1 year warranty. yes, you must remove the back plate to install batteries b/c that plate is secured by 1 tiny screw (the kit comes w/ a handy, tiny screwdriver + 8 tiny "zip" ties & 2 extra tiny screws). personally, i see no problem w/ this design but ymmv. Conclusion: would I recommend the product (or, Loraffe in general)? so far, absolutely. would I buy again? whelp, hopefully not b/c we hope the two we've already invested in will work as intended/ advertised for years to come. the ZN-509 emits both ultrasonic sounds & LED strobe effect lights which 'cycle' through 5 stages about every 113 seconds. there is both a red indicator light & a beeping sound emitted from the unit (per manual) when low power (<3.3 volts) is reached & batteries need replacing. there are two switches: an On/Off switch and the "Test" switch. that's it. we dwell in the ATL, GA suburbs (for context) in an older subdivision & our property (about 1/2 an acre) is adjacent to about 2 acres of natural, wooded area which also extends around the rear of our property line. we've been here about 17 years & rodents (mostly squirrels & field mice) have been the major culprit of our rodent dilemma. between the Loraffe's, the annual owls & hawks, we're optimistic that that dilemma will prove mitigated once and for all... time will tell.

It's easy to install and the quality is good but I don't know if it really works, two successive nights, when I checked the underhood I could still see rats poo.

This gadget is still going strong after a month. Got it to deter mice from interior of car. They made it to my engine bay before, so this is part of a multi-faceted approach to rodent deterrent. It stays on the arm rest while driving (and sometimes is going off and on at slow speeds). Since I don't have evidence of more mice activity, I would say this might be helping. It gives me peace of mind having it. It is very quiet, seems to be constructed well (plastic) and looks like it will hold up. The batteries probably last 3 months, which is worth it. It's easy to use and glad I bought it.

TLDR: Nothing works on wild rats, except this device. PROS: It just works! CONS: Only lasted 8 months, and needs 3 AAA batteries every 45-60 days. ...Now on to the review. I have a wild rat problem with my Heavy Equipment that lives outside in a field all day everyday. I initially installed one of these in my brand new backhoe as a precaution. To my surprise it never got rats. Fast forward about 8 months, I started getting rats all of a sudden. They were chewing up wires, and hoses, and costing me lots of money and time in repairs. It didn't dawn on me at this time to check the sonic device, I was in full panic mode. So I try repellent sprays, throw bags which are a repellent as well, poisons (Yes I know what people say, and I don't care there are thousands upon thousands of wild rats in this area, and it costs time and money to repair the damage) I tried multiple methods, multiple brands, nothing worked, the rats actually ripped up the "repellent bags" and made a mess as if to prove they aren't afraid of them LOL. Anyways, after 3 weeks of this mess, I finally thought maybe my device isn't working anymore. Come to find out, it had in fact died for good. It got clogged up with fine dust. So that sucks, but I bought another one. I installed it, and BAM, instantly, no more rats! For me the simple Pro outweighs all cons, because it's much cheaper than repairs.

There was a huge pile of nutshells right where I placed the device on my engine (see pic). I vacuumed most away. I am pretty sure it was from mice infestation, not rats, though there definitely are rats running all around the yard and neighborhood at night. They are endemic here in this dreamland suburbia. Happy and fat, too. I put the alarm in my Prius on January 26. I rarely drive this car, it's a back-up car. I drive it maybe once a week. I check the device every few weeks by opening the hood and switching to the TEST mode which gives off a sound and a few beeps to let me know it is still working. Also, it may be helpful to know that there were a lot of rainstorms this Winter and my car is kept in the driveway. No function issues with the device relating to the wet weather. And it has been 100% effective! Zero nuts or evidence of return of the mice. Before this device, I would use the peppermint spray that I bought on Amazon every couple of weeks. What a pain. It did nothing to stop them, btw. Today I was walking by my car (April 28) and I heard this unusual beep. I realized it was the device signaling that the battery needed to be replaced. So the three AAA batteries lasted exactly 3 months in this car that I rarely drive. So happy with all of that! I waited to write about the device until I knew how long the battery would last so that this review would have some value to you folks out there. Good luck. UPDATE July 22nd, 3 months later: Again walking by the Prius I heard the beep indicating a low battery. Easy swap out of the 3 AA batteries. (My original message said AAA batteries which was incorrect and I corrected it now.) So it looks like this little device needs a battery swap out every 3 months. Again, I use this car infrequently, so I don't know how that affects the battery life. I am happy to report still no return of mice! Yay! New updated pic added today.

Easy to install however, it takes three AA batteries that have to be replaced every 45 days. I should’ve looked into that before I bought this.

So far so good, it seems to be working. I have it under my car as that is where the squirrels did the damage and it helps.

Hasra el momento ha funcionado muy bien

No funciona. Hase unos ruidos.

No sirve para nada