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MouseBlocker Classic Electronic Rodent Deterrent - 12V DC
MouseBlocker

MouseBlocker Classic Electronic Rodent Deterrent - 12V DC

Part Number: MB44FR
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$59.95
Retail:$84.11
You Save: 29%
Insect and Pest Control
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Mice chew wires and clog engine bays fast. This compact 12V deterrent helps discourage nesting by emitting steady ultrasonic sound while your RV, ATV, or equipment sits in storage. Fastest Shipping and Great prices for MouseBlocker Classic Electronic Rodent Deterrent - 12V DC. Read our customer reviews of MouseBlocker insect and pest control. Call 1-800-940-8924 for expert service or order your insect and pest control part number MB44FR by MouseBlocker online at etrailer.com.
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MouseBlocker Insect and Pest Control - MB44FR

  • Rodents
  • MouseBlocker
  • Electronic Deterrents
  • Repellents and Deterrents
  • Indoor
  • Casual
  • RVing

Mice chew wires and clog engine bays fast. This compact 12V deterrent helps discourage nesting by emitting steady ultrasonic sound while your RV, ATV, or equipment sits in storage.


Highlights

  • Simple, Low-Draw Setup: Hardwires directly to any 12V battery and draws just 0.1 watts.
  • Reliable Single-Mode Output: Emits a steady ultrasonic signal at 85 dB.
  • Multi-Species Protection: Helps deter mice, squirrels, chipmunks, rabbits, and more.
  • Vehicle-Ready Design: Built for engine compartments, tool bays, and outdoor gear.
  • Compact and Durable: Installs almost anywhere; stable in heat, cold, and vibration.
  • Silent, Continuous Coverage: Runs in the background while your vehicle sits idle.

Features to know about

For Engine Bays and Small Storage Compartments

The MouseBlocker Classic helps discourage mice from turning your vehicle into their nesting spot. It's a great fit for motorcycles, snowmobiles, mowers, ATVs, and jet skis. Many RV owners and dealers also install multiple units throughout a camper or motorhome to help protect different areas. Its compact size fits easily into engine compartments, battery boxes, and other enclosed spaces where rodents like to hide. Designed for vehicles and equipment that sit unused for several days at a time, it runs quietly off your 12V battery without draining it.

How It Works

This unit emits a steady ultrasonic sound at 85 dB, helping discourage rodents from nesting in tight, enclosed spaces. It runs continuously while connected to a 12V battery and draws just 0.1 watts, so it wont interfere with your vehicles power system. Its housing is built to handle engine bay temperatures, vibration, and moisture, so you can leave it installed without worry while your vehicle or equipment sits unused.

Installation Tips

Mount the unit in an enclosed area like an engine bay, under-seat storage box, or equipment compartment. It works best when placed near wiring or insulation rodents may be tempted to chew. Its size makes it easy to tuck out of sight, and the simple 2- or 3-wire hookup connects directly to your 12V power system.

Specs

Power:

  • Power source: 12V battery connection
  • Power consumption: 0.1 watts

Ultrasonic Output:

  • Frequency range: 25 45 kHz (intermittent)
  • Fixed volume: 85 dB


99917 Mouse Blocker Classic Mouse Repellent - 12 Volt DC

Installation Details MB44FR Installation instructions



Video of MouseBlocker Classic Electronic Rodent Deterrent - 12V DC

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of MouseBlocker Insect Control - Classic Electronic Rodent Repellent - MB44FR

Hi, everybody. Andy here with etrailer.com. Let's take a real quick look at this MouseBlocker Classic Electronic Rodent Repellent. Now, no matter how much you might love animals, some of them can be pesky and destructive to your property. Whether you've tried everything already or you're just looking for a more humane way to keep your stuff safe from teeth, claws, and a mess, this device is gonna be like having a no vacancy sign to those critters. So there's not gonna be any need to handle poison, reset traps, or deal with rodent corpses.

This is gonna offer you a cleaner, more compassionate way to protect your investment. Now, this is going to connect right to your vehicle's 12-volt battery. It's gonna keep working the whole time while it's in storage, and this is going to emit an ultrasonic sound wave that has been proven to irritate and drive out rodents like mice, squirrels, chipmunks, and even rabbits. It only uses a tiny draw of power. They state 0.1 watt draw of power.

That's what MouseBlocker states. So, it's about the same power that comes from powering an LCD clock. So this is not gonna drain your battery. No outlet is gonna be needed, and then there's not gonna be anything to clean up. No droppings, no nasty smells to worry about.

Just one of the best mouse repellents for long-term vehicle storage. Once this is installed, it's going to run continuously in the background using ultrasonic frequencies that rodents can't tolerate. But you're not gonna hear a thing, the pest will. So this is gonna be safe for you, your family, your kids. So instead of going after your wiring or making a new home in your storage compartments, those pesky rodents will go elsewhere.

So, this is specifically designed for enclosed spaces like engine compartments, undersea storage bays, motorcycles, snowmobiles, ATVs, jet skis, mowers, farm equipment. The list can go on and on. The ultrasonic sound works best when it can bounce around and fill the space, so this is gonna be ideal with areas with panels or walls. The open air use isn't recommended, because the sound waves simply don't carry well without surfaces to bounce off of. For best results, you wanna install those units somewhere protected and contained from weather, from the elements. Lemme go ahead and give you some measurements real quick. The overall width, 3 1/2 inches. What I'm calling height, about 2 1/4 inches. The thickness, almost an inch. So again, this should be connected directly to your vehicle's battery. The black cable here should be connected to the positive battery terminal, and then the brown should be connected to the negative battery terminal. And then this gray wire should be connected to an ignition or accessory source so that when the car ignition is turned on, the MouseBlocker will be switched off. That way, the MouseBlocker will only draw power when the car is parked and turned off. But if that gray wire is not connected, the MouseBlocker will operate in continuous operation, which may be necessary in some applications. So that ignition wire, hooking that up, that's an optional thing, not a necessity for you. Now, you can see here that it does include some cable ties to keep your wiring nice and cleaned up, and then some screws here and also a terminal bracket as well, along with instructions to guide you through the pretty simple installation process. If you do decide to pick this up, we would love to hear back from you regarding how this worked out for you, and you can share your experience with us by dropping a comment or leaving a review on this product page. We'd love to hear back from you. By the way, I wanted to mention, this does have a red light on here. Obviously that's to let you know that it's working, but it's not a bright red light. It's gonna be very dim and you're only going to be able to see that in low light or dark conditions. So, it's a low, dim light, again, just to reduce that draw off of your battery. Well, I think that's gonna wrap up our look today. I do hope this was helpful for you. Again, my name is Andy. Thank you for joining me.

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See what our Experts say about this MouseBlocker Insect and Pest Control


Info for this part was:

Employee Daron K
Edited by:
Daron K
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Updated by:
Sabrina W
Employee Kim H
Written by:
Kim H

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