An Under-Hood Rodent Deterrent for Parked Cars
Two compact units that use ultrasonic sound and flashing LED lights to make your engine bay, trunk or garage a less inviting place for mice, rats and squirrels. They pause automatically while you drive and switch back on after you park.
- 2 units per pack, each with ultrasonic sound (18–36 kHz) and 2 flashing LEDs
- Power from the car (DC 5–12V), USB, or 4 AA batteries
- Auto standby while you drive, back on about 10 seconds after parking
- Low draw: about 5 mA (0.1 W)
$59.00 · Free shipping from the U.S. · Delivered in about 4–10 business days
How It Works Under the Hood
Sound and Light Where Rodents Like to Nest
Mount a unit in the engine bay, away from the exhaust and moving parts, with a clear line toward the space you want to cover. It sends out ultrasonic sound between 18 and 36 kHz and flashes two LED lights, a combination meant to make a warm, quiet engine bay feel less safe to rodents looking for shelter. Results vary with the location and the animals, and the sound doesn't pass through solid objects, so placement matters.
Pauses While You Drive
A vibration sensor puts the unit on standby while the engine is running and switches it back on about 10 seconds after you park, so it works only while the car is sitting. It draws about 5 mA (0.1 W) when it's on.
Three Ways to Power It
Connect it to the car with the included vehicle power cable (DC 5–12V), plug it into a USB power adapter with the included cable, or run it on 4 AA batteries (not included). A power switch and a red/green status light show when it's on.
Under-Hood Ultrasonic Rodent Repeller (2-Pack)
Each pack has 2 units with power cables, cable ties and a screwdriver. Use one under the hood and one in the trunk or garage, or fit one in each of two cars.
- 2 units: ultrasonic sound (18–36 kHz) + 2 flashing LEDs each
- Vehicle cable, USB, or 4 AA batteries (not included)
- Auto standby while you drive
- Rated from -13°F to 176°F (-25°C to 80°C)
Ships from our U.S. partner warehouse within 1–3 business days and usually arrives 3–7 business days after it ships, with tracking by email.
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Specifications
As stated by the manufacturer. Coverage is measured in open space; an engine bay full of parts gets less.
| Spec | Detail |
|---|---|
| Units per pack | 2 |
| Ultrasonic frequency | 18–36 kHz |
| Lights | 2 flashing LEDs per unit |
| Power | Vehicle cable (DC 5–12V), USB cable with a USB power adapter, or 4 AA batteries (adapter and batteries not included) |
| Current draw | About 5 mA (0.1 W) |
| Standby | Vibration sensor pauses it while driving; resumes about 10 seconds after parking |
| Operating temperature | -13°F to 176°F (-25°C to 80°C) |
| Coverage | 215–538 sq ft per unit in open space (manufacturer rating) |
| Size and weight | About 3 × 1.2 × 4.6 in, 3.3 oz per unit |
Results vary with placement, the animals and what's attracting them.
Our Promise
Free shipping to the contiguous U.S. Your order leaves our U.S. partner warehouse within 1–3 business days and usually arrives 3–7 business days after shipping, with tracking by email. If it arrives damaged or isn't right, contact us within 30 days of delivery and we'll make it right with a replacement or a refund.
Why Choose This Rodent Repeller
Made for engine bays, trunks, garages and sheds
Two units, three power options, nothing to remember when you drive.
Sound + Light
Ultrasonic sound from 18 to 36 kHz and two flashing LEDs on every unit.
Auto Standby
Pauses while the engine runs and switches back on about 10 seconds after you park.
3 Power Options
Vehicle power cable, USB, or 4 AA batteries for spots without a power source.
Low Power Draw
About 5 mA (0.1 W) when running, and it rests while you drive.
Engine-Bay Ready
Rated to work from -13°F to 176°F (-25°C to 80°C).
Easy to Mount
Cable ties and a screwdriver are in the box, so most installs take a few minutes.
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What's Included in the Box
- 2 rodent repeller units
- 2 vehicle power cables
- 2 DC-to-USB cables
- 8 cable ties
- Screwdriver
- User manual
Install It in 4 Steps
- 1Park, switch off the engine and let it cool. Pick a spot away from the exhaust, belts and fans, with a clear line toward where rodents get in or nest.
- 2Fasten the unit with the included cable ties, with the speaker facing the open space.
- 3Connect power: the vehicle power cable as shown in the manual, a USB power source, or 4 AA batteries. If you're not comfortable wiring to the car, use batteries or ask a mechanic.
- 4Switch it on and check the status light. Then clear away food, nesting material and debris around the car and garage.
Real Help When You Need It
Questions about placement, power or your order? Send us a message from our Contact page and we'll reply within 1 business day. Damaged or wrong items are covered for 30 days after delivery.
Frequent Questions
Everything you need to know before you order
Will it keep every rodent away?
No device can promise that. Results depend on where it's placed, how many animals are around and what's attracting them. It works best as one part of a plan: remove food and nesting material, block entry points in the garage, and check under the hood now and then.
Will it drain my car battery?
It draws about 5 mA (0.1 W) and pauses while you drive. That's a small draw, but if the car sits for weeks or the battery is weak, run the unit on AA batteries or keep the car battery on a maintainer.
Can people or pets hear it?
Many adults can't hear it, but some people, especially children and teens, may hear the lower end of the range, and dogs and cats may hear it too. Don't use it near pet rodents, rabbits or guinea pigs.
Does the sound go through the hood or walls?
No. Ultrasonic sound doesn't pass through solid walls or objects, so place the unit with a clear line toward the area you want to cover.
Where can I use it?
Engine bays, trunks, garages, sheds, basements and storage rooms. Use one unit per space; the sound doesn't travel from one space to another.
Is it waterproof?
The manufacturer doesn't list a waterproof rating. Mount it where it won't be sprayed directly, and take it out before pressure-washing the engine bay.
How much area does one unit cover?
The manufacturer rates it at 215–538 sq ft per unit in open space. In a crowded engine bay or a cluttered garage, expect less.
What temperatures can it handle?
It's rated to work from -13°F to 176°F (-25°C to 80°C). Keep it away from the exhaust and other parts that get hotter than that.
Why are there 2 units?
Use one under the hood and one in the trunk or garage, or fit one in each of two cars.
How long does shipping take?
Shipping is free to the contiguous U.S. (48 states and DC). Your order ships from our U.S. partner warehouse within 1–3 business days and usually arrives 3–7 business days after shipping. You'll get a tracking number by email.
What if it arrives damaged or I change my mind?
Contact us within 30 days of delivery. Damaged or wrong items get a free replacement or a full refund. If you change your mind, return it unused in its original packaging (return shipping is paid by you) for a refund.
