GPS Tracker For A Trailer

By Ryan Horban, who has sold and fitted GPS trackers for more than fifteen years.

Trailers haul boats, livestock, mowers and half a crew's tools. That same portability is exactly what makes them worth stealing.

A thief does not need keys. Backing up, hooking on and driving away takes under a minute. Most trailers look like every other trailer on the highway.

Why Trailers Are So Hard To Get Back

Cars have working recovery infrastructure behind them. Plate readers, VIN databases and factory immobilisers all help. A trailer has almost none of that.

Purdue's own guide makes the point bluntly. Without a VIN, your chances of recovery are zero. One repair shop told them the VIN was unreadable on half of older trailers.

The other half of the problem is description. Tell an officer you lost a white five by eight enclosed trailer. You have just described several hundred trailers in your county.

The 5 Best Trailer GPS Trackers Compared

Prices and plans move constantly in this category. Where we could not confirm a figure, the cell says so rather than showing a number that looks precise.

How We Chose These Trailer GPS Trackers

Several of these units sit in our own test collection. Every first party photo and clip below is ours rather than stock.

Rankings rest on published specifications, manufacturer documentation, and hands on time with the units we stock. Owner feedback counts too. Where a maker quotes a headline figure that only applies on one plan tier, we name that tier.

• 01How long it runs unattended.A trailer supplies no power, so runtime is the first question and not the fifth.
• 02What the plan really costs.We priced year one and asked what happens in year two, on every product here.
• 03Whether it survives outside.A trailer tracker lives in road salt, rain and heat, often under the frame.
• 04How fast an alert arrives.Movement alerts matter more than live maps. You need to know inside minutes.
• 05Whether the claims hold up.Several listings in this category quote a battery figure that assumes one ping a day.

LandAirSea 54 - Best Overall GPS Tracker For Trailers

Key features

• IP67 sealed against dust and water
• Strong internal magnet, no wiring or tools
• Motion activated reporting to preserve battery
• Geofence and movement alerts by text or email
• Lifetime warranty with US based support

Pros and cons

Pros

• Genuinely sealed
• Mounts in seconds
• Year one included
• Lifetime warranty

Cons

• Needs recharging
• Fast rate costs more
• Year two is a real bill

Trak-4 - Best Long Battery GPS Tracker For Trailers

Key features

• 4,600 mAh rechargeable cell, 12 to 18 months on daily pings
• Choose hourly, ten minute or one minute reporting
• Waterproof housing with built in magnets
• Falls back to Wi-Fi and cellular location indoors
• No contract, no activation or cancellation fee, SIM included

Pros and cons

Pros

• Over a year per charge
• Cheapest plan here
• Works inside buildings
• No contract

Cons

• No mobile app
• United States only
• Fast pings drain it

Tail Light GPS Tracker - Best For Commercial Trailers

Key features

• Replaces a standard tail light, roughly a minute to fit
• DOT approved red and clear brake light built in
• Powered by the stop and tail circuits
• Three axis accelerometer for motion and impact
• Location updates roughly every five minutes while moving

Pros and cons

Pros

• Nothing to charge
• Fits in a minute
• Doubles as a lamp
• Impact detection

Cons

• Needs wired lights
• Dies with the circuit
• Thin public feedback

BrickHouse Volt - Best Hardwired GPS Tracker For Trailers

Key features

• Hardwired to 12V, no charging cycle
• Around 3.8 by 2.2 by 0.9 inches, 2.4 ounces
• Coverage across the US, Canada and Mexico
• Rated from minus 4F to 140F
• Free technical support for the life of the device

Pros and cons

Pros

• Never needs charging
• Reports continuously
• Three country coverage
• Lifetime support

Cons

• Needs 12V on board
• Wiring is a real job
• No use on a bare trailer

Dealer Style Long Life GPS - Best For Seasonal Trailers

Key features

• Manufacturer rating of up to three years of battery
• Around 3.51 by 3.28 by 0.83 inches
• Magnetic mount, no wiring needed
• Rated from minus 4F to 140F
• Movement alerts when the asset is touched

Pros and cons

Pros

• Years between charges
• No wiring needed
• Wide temperature range
• Survives neglect

Cons

• Rating assumes slow pings
• A plan is required
• Bulkier than the rest

How A Trailer GPS Tracker Works

A GPS receiver listens to satellites and works out where it is. The tracker then sends that position over a cellular network. A server holds it, and you read it from a phone or browser.

That second half is why every unit here needs a plan. The satellites are free. The cellular data and the server behind your app are not.

How To Set Up A Geofence On A Trailer Tracker

A geofence is the feature that earns its keep on a parked trailer. You draw a boundary on a map, and the tracker alerts you when the trailer crosses it.

• 1Mount and activate first.Fit the tracker, charge it fully, and confirm it reports a position you recognize.
• 2Draw the boundary tight.Keep it close to where the trailer parks. A wide fence delays the alert you actually want.
• 3Turn on text as well as email.Email alone gets missed overnight, which is exactly when trailers disappear.
• 4Test it before you rely on it.Tow the trailer out of the zone once and check the alert lands on your phone.

9 Ways To Prevent Trailer Theft

Purdue Extension published a full guide to this, and most of what follows comes from it. None of it is expensive, and almost none of it takes longer than a minute.

• 1Fit a tracker.Nothing else on this list gives police a live location once the trailer is gone.
• 2Buy a serious lock.Purdue suggests $30 to $50, in hardened steel, with a shackle of five sixteenths of an inch or thicker.
• 3Choose a hidden shackle.Keep any exposed gap under three quarters of an inch, or a prybar does the rest.
• 4Park so it cannot swing out.Back the tongue against a wall, fence or curb, and block it in with another vehicle.
• 5Chain it to something fixed.Use grade 43 or grade 70 chain with links of five sixteenths of an inch or thicker.
• 6Pull the emergency brake cable.That locks the wheels. Note it loads the trailer battery and can flatten it within a day.
• 7Mark it so it is not anonymous.Lettering, decals, even a number painted on the roof. Marked trailers are harder to resell.
• 8Put GPS decals on all four sides.Purdue recommends this even without a tracker. A thief has to stop and decide whether it is a bluff.
• 9Leave empty trailers unlocked.Counterintuitive, but a thief who opens it and sees nothing moves on without breaking the door.

Is Your Trailer Covered By Insurance?

There is a widespread belief that a trailer is automatically covered by the policy on the truck towing it. Usually it is not.

Liability often carries over while the trailer is hitched. Physical damage and theft of the trailer itself normally need their own policy. The tools inside almost always need a third.

Purdue lists seven questions worth putting to an agent. These four matter most to a trailer owner.

• 1Is it listed under the right owner.You cannot insure something you do not own, and the claim follows the owner.
• 2Is it covered when unhitched.Some policies cover a trailer only while it is attached to the towing vehicle.
• 3Is theft of the trailer covered.Liability and theft are separate things, and the second often needs its own line.
• 4Are the contents covered.Tools and equipment inside usually sit on a different policy again.

Then photograph or film what you keep in the trailer. A claim moves far faster when you can show what was there.

What To Do If Your Trailer Is Stolen

• 1Call the police straight away.Every hour of delay cuts the odds. Report it before you start looking yourself.
• 2Give them the VIN.Without it recovery is close to impossible, so find the paperwork before you need it.
• 3Hand over the live location.Tell the officer you have GPS on it and show them the current position on your phone.
• 4Do not go and get it.Purdue is explicit about this. Recovering it yourself puts you and others in danger.
• 5Widen the net.Post photos showing distinguishing marks, and check local pawn shops for the contents.

Final Verdict

• LandAirSea 54Our pick for most owners. Easiest to fit, sealed properly, first year of service included.
• Trak-4Buy this if the trailer sits for months. Twelve to eighteen months per charge on daily pings.
• Tail light trackerBest on a wired commercial trailer, where the light circuit does the powering.
• BrickHouse VoltThe hardwired answer for an RV or any trailer carrying its own 12V battery.
• Dealer style long life GPSFor a seasonal trailer you would rather fit once and forget entirely.

Pick by how the trailer lives, not by the spec sheet. A parked boat trailer and a working landscape trailer need different hardware. Buying the wrong shape is the usual mistake.

About The Author

Sources: Purdue Extension PPP-134, Protect Your Trailers And Contents From Theft, Whitford and colleagues, June 2020. National Insurance Crime Bureau vehicle theft release, March 2026. Manufacturer specifications and current retail listings for each product named.

Frequently Asked Questions

What is a trailer GPS tracker

A small battery powered or wired device that works out its position from satellites. That position then goes out over a cellular network. You see the result in an app or a browser.

On a trailer the useful feature is the movement alert rather than the live map. You want a text the moment something hooks up and pulls away.

Do trailer trackers need a subscription

Almost always, because the cellular data and the tracking platform both cost money to run. Listings advertising no subscription usually bundle the first year into the purchase price.

That is true of our own LandAirSea bundle. Ask any seller what year two costs, ours included. Compare on the three year total rather than the sticker.

Where should I mount a tracker on a trailer

Somewhere with steel to grip and sky above it. A GPS receiver listens for very weak signals. Metal above the unit hurts far more than metal beside it.

Test the spot with a fridge magnet first. Aluminum panels, plastic fenders and composite liners will hold nothing at all.

How long should the battery last

That depends entirely on how often the device reports, and every headline figure assumes the slowest setting. Trak-4 quotes twelve to eighteen months at one ping a day.

Switch the same unit to one minute reporting and you are charging it regularly. Always ask which interval a runtime claim assumes.

Will a tracker work inside a metal trailer

Poorly, and this catches people out. A fully enclosed steel box blocks both the satellite signal and the cellular signal the tracker needs to report.

Mount on the frame or under the body instead of inside the cargo area. Some units fall back to cellular or Wi-Fi positioning indoors, which gives a rough area rather than an address.

What types of trailer are there

• Utility and flatbed: open decks for mowers, materials and small machinery.
• Enclosed cargo: a locked box, and the type most attractive to a thief.
• Travel trailers and campers: towable living space, usually with an onboard battery.
• Boat trailers: built around a hull, and often parked for months at a time.
• Livestock and horse: ventilated, heavy, and expensive to replace.
• Semi trailers: commercial units that couple to a tractor unit.

The distinction that matters for tracking is simple. Does the trailer carry its own 12V supply, or does it not.