Fitted at our Markham shop · Ships across Canada

LDS M640 battery-powered rodent repellerLDS M640 battery-powered rodent repellerLDS M640 battery-powered rodent repellerLDS M640 battery-powered rodent repellerLDS M640 Battery-Powered Rodent Repeller with Vibration SensorLDS M640 Battery-Powered Rodent Repeller with Vibration SensorLDS M640 Battery-Powered Rodent Repeller with Vibration SensorLDS M640 Battery-Powered Rodent Repeller with Vibration SensorLDS M640 Battery-Powered Rodent Repeller with Vibration Sensor
Battery rodent repeller

LDS M640 Battery-Powered Rodent Repeller with Vibration Sensor

Ultrasound and a night light · No wiring

Unit only
$59.99 CAD
$59.99 CAD

The repeller and six AAA batteries, so it works out of the box.

Book an install Text us your year, make and model
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Our verdict

I'll be straight with you: sound on its own doesn't keep mice away for long, because they get used to it. The M640 is a good extra layer for a stored car, a garage or a cottage, and at this price it's an easy add. Don't buy it as your only protection. Pair it with capsaicin tape on the wiring, or an M229 in the engine bay.

Jeff BatesOwner, Lockdown Security · Installing since 2003

A no-wiring repeller for vehicles in storage, garages and cottages. It sends variable ultrasound once a minute, flashes a blue light at dusk and overnight, and switches itself off when the engine starts. Sound on its own fades, so treat it as an extra layer alongside tape or a plate unit.

  • No wiring
  • About 12 months on 6 AAA, included
  • Covers about 40 m² enclosed
  • Off when the engine starts
  • Free shipping on orders over $200
Try it

Inside the engine bay

Where mice get in, how a shock plate stops them, what happens when they bite taped wiring, and why sound alone fades.

Engine bay drawing WHEEL WELL WHEEL WELL FRONT ENGINE AIR BOX BATTERY FUSE BOX COWL · CABIN AIR FROM UNDERNEATH 1 2 3 4 5 ENGINE BAY, SIDE VIEW VEHICLE BODY (METAL) SINGLE-POLE: THE CIRCUIT RUNS THROUGH THE VEHICLE BODY HOSE BRACKET CHARGED PLATE CHARGED TOP NEGATIVE BASE ENGINE HARNESS, CLOSE UP BARE COPPER CAPSAICIN TAPE, 50% OVERLAP STORED VEHICLE, NIGHT BY NIGHT NIGHT 1 SOUND UNIT SHOCK PLATES

    Not sure which level? Text us your year, make and model and we'll tell you before you book.

    How it works

    How the M640 works

    The M640 runs on six AAA batteries, included, so it needs no connection to your vehicle's wiring. It's a sound-and-light repeller, with no shock plates.

    • Variable ultrasound: once a minute it sends about 5 seconds of sound, shifting between roughly 12 and 24 kHz. The pitch keeps changing, which is meant to make it harder for animals to get used to. Some people can hear the lower tones.
    • Night light: a blue LED flashes automatically at dusk and through the night.
    • Turns itself off: a vibration sensor switches it off when the engine starts.
    • Battery life: about 12 months from good alkaline AAA batteries. It draws about 1 mA while it runs and 5 µA on standby.

    Sound on its own isn't enough. Rodents get used to a noise when nothing bad follows it, so treat the M640 as an extra layer alongside capsaicin tape and a plate unit, not as your only protection.

    Where to put the M640
    • In a stored vehicle: put it in the engine bay, or wherever rodents have been getting in, in a dry spot away from the exhaust and other hot parts.
    • In a garage, shed or cottage: it covers roughly 40 m² of enclosed space.
    • Aim it: ultrasound doesn't travel through or around solid objects, so point the speaker at the area you want to protect, with nothing in the way.
    • Keep it dry: it's splash-proof (IP44), not waterproof. Keep it out of direct spray, and dry it off if it gets soaked.
    Batteries, the blue light and the sounds
    • A steady, continuous tone: the batteries are running low. Replace all six.
    • Blue light at night: that's normal. It flashes automatically at dusk and overnight.
    • Cold weather: battery life drops in the cold, so check it more often over the winter.
    • On/off switch: switch it off when you don't need it, to save the batteries.
    Full guide, install steps and troubleshooting

    Installation

    Fitting it is quick. Getting to where it has to go is what takes the time, so that's how we price it, and we confirm the level from your year, make and model before you book. If we find a nest, we stop: the vehicle has to be cleaned by a detailer or cleanup provider before we protect it.

    Level 1

    Deterrent install, from above

    We can reach the entry points from above, with the hood up. About an hour.

    Covers
    M186 or M229
    Access
    Hood up, cover or air box lifted
    Time
    About 1 hour

    Flat rate $150

    Level 2

    Deterrent install, liners off

    The entry points are behind the fender liners or above the splash shield, so those come off. About two hours, at our Markham shop.

    Covers
    M186 or M229
    Access
    Liners or splash shield off
    Time
    About 2 hours

    Flat rate $300

    By time

    Harness wrapping

    Capsaicin tape on the harnesses, hoses and fuel lines, highest-risk runs first. With a Level 2 install the panels are already off.

    Covers
    Wiring, hoses, fuel lines
    Tape
    Charged by the roll
    Time
    From 30 minutes

    From $75

    Good to know

    Installing it yourself?

    The M229 needs no wiring, and the M186 needs constant power, a ground and an ignition-switched wire. Either way, placement decides how well it works: plates go where rodents climb in, at least 10 mm from any other live contact and clear of metal, conductive hoses and hot parts. The steps are above, and the support page has the full guide.

    Before anyone works in the engine bay, switch the unit off. The plates can stay charged for up to 3 minutes.

    The details

    A no-wiring repeller for vehicles in storage. Six AAA batteries (included) run it for about a year. It pulses variable ultrasound, flashes a blue light at dusk and overnight, and a vibration sensor switches it off when the engine starts.

    What to expect

    Once a minute it sends about 5 seconds of sound, shifting between roughly 12 and 24 kHz. Some people can hear the lower tones. Rodents can get used to sound on its own, so treat it as an extra layer alongside capsaicin rodent tape, not as your only protection. For a battery-powered unit with shock plates, see the LDS M229.

    Who it's for

    Summer cars, RVs, boats and trailers in storage, plus garages, sheds and cottages. It covers roughly 40 m² in an enclosed space.

    Good to know

    It's splash-proof (IP44), not waterproof, so keep it out of direct spray and dry it off if it gets soaked. Battery life drops in cold weather. If you hear a steady, continuous tone, the batteries are running low and need replacing.

    Specifications

    • Power: 6 x AAA batteries, included (alkaline recommended)
    • Battery life approx. 12 months
    • Current draw approx. 1 mA, 5 µA on standby
    • Frequency approx. 12-24 kHz
    • Interval approx. 5 seconds on, 55 seconds off
    • Blue LED flashes automatically at dusk and at night
    • Vibration sensor switches it off when the engine starts
    • Coverage approx. 40 m² in an enclosed space
    • IP44 splash-proof
    • On/off switch

    For cleanup, prevention and what actually works, read our guide: How to stop mice chewing your car's wiring.

    At a glance

    Product warranty
    1 Year
    SKU
    M640
    User guideHow it works, install steps and troubleshooting

    What customers say

    Verified reviews from customers who bought this.

    Common questions

    Which unit should I get?

    The M186 for a car you drive: it runs off your battery while you're parked and switches off when you drive. The M229 for a vehicle that sits, or one you'd rather not wire into: it runs on its own batteries. The M640 is sound and light only, so treat it as an extra layer for storage, not your main protection.

    Do I still need capsaicin tape?

    On anything they've already found, yes. Plates stop them at the way in; capsaicin tape protects the harnesses they've already found. Together they're far more effective than either on its own.

    How much does installation cost?

    Fitting an M186 or M229 is a flat rate. Level 1 is when we can reach the entry points from above, about an hour. Level 2 is when the splash shield or fender liners have to come off, about two hours, and is done at our Markham shop. Tape wrapping is sold by time, so you choose how far it goes. Text us your year, make and model and we'll tell you which level your vehicle needs before you book.

    Why would my vehicle need Level 2?

    Because of where the mice get in, not because of the deterrent. On many newer vehicles the engine bay is closed in underneath, and the openings rodents use are behind the fender liners or above the splash shield. Those panels have to come off to put plates where they'll actually be touched, which adds about an hour. We tell you which level applies before we start, never after. Level 2 is done at our Markham shop, not on-site.

    What if you find a nest in my vehicle?

    We stop the job. We don't remove nests: the vehicle has to be cleaned by a detailer or cleanup provider first, because dried droppings can carry hantavirus. Once it's clean, book again and we'll protect it so they don't move back in. Don't sweep, vacuum or blow a nest out yourself, since that puts the dust in the air.

    Will it drain my battery?

    The wired M186 draws under 5 mA and shuts itself off if your battery drops below about 11.5 V. The M229 and the M640 run on their own batteries and never touch your vehicle's. If you also have a remote starter or a dash cam in parking mode, tell us and we'll account for the combined draw.

    Could it hurt my cat or dog?

    Plate units are built to startle, not injure. The current is very low and sized for a small animal. Separately, cats sometimes shelter in warm engine bays in winter, so knock on the hood before you start the car.

    Is it safe to work near the plates?

    Switch the unit off first: pull the M186's fuse, or use the M229's side switch. The plates can stay charged for up to 3 minutes while the capacitor drains. The current is very low and not dangerous to people, but the jolt is a surprise, so take care if a sudden shock could affect a health condition you have.

    Do you ship across Canada?

    Yes. Shipping is free in Canada on orders over $200, and smaller orders ship for a flat $10. We also ship to the US and worldwide; US orders may be charged duties at checkout.

    Not sure which one, or which level?

    Send us a photo of your engine bay with your year, make and model. We'll tell you what we'd fit and which install level applies.

    Text us a photoEmail us a photoCall 1-866-824-4118