MARCALAR TPMS Kit
MARCALAR TPMS Kit
The solar-powered tire monitor that lets you tow with total confidence. No app, no batteries, no wires.
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MARCALAR TPMS Kit
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What You Get
What You Get
Every MARCALAR Kit includes a solar-powered monitor, external tire sensors (quantity based on your variant), and everything you need to install in under 5 minutes. No app to download. No batteries to replace. No wires to run.
Why You Need MARCALAR ?
Why You Need MARCALAR ?
A trailer tire can lose pressure or overheat without you ever feeling it from the cab. By the time you notice, the damage is done — shredded fenders, destroyed wiring, thousands in repairs, and hours stranded on the shoulder.
MARCALAR watches every tire for you in real time. Pressure drops, temperature spikes, slow leaks — you see it on screen before it becomes a blowout. It’s the difference between a calm pull-off and a $5,000 disaster.
Key Benefits
Key Benefits
Solar-Powered — No batteries to die. No dead sensors going silent on you.
No App Required — Real-time data on the monitor itself. Works everywhere, even where your phone doesn’t.
Reads to 144 PSI — Handles trailer tires, RV tires, truck tires. One system for everything you tow.
Pressure + Temperature — Catches slow leaks AND overheating before they become blowouts.
5-Minute Install — Screw on the sensors, mount the monitor, drive. That’s it.
Our Guarantee
Our Guarantee
90-Day Money-Back Guarantee Try MARCALAR on your next trip. If it doesn’t give you the peace of mind we promise, send it back for a full refund. No questions asked.
Lifetime Warranty Every MARCALAR kit is backed by our lifetime warranty. If anything fails, we replace it. Period.
Shipping & Delivery
Shipping & Delivery
Orders ship within 1-2 business days from our US warehouse. Most customers receive their kit in 3-7 business days.
Free shipping is available on qualifying orders. Tracking is provided with every shipment so you know exactly when your MARCALAR arrives.
Trustpilot reviews
Excellent 4.8 / 5
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Caught a slow leak before disaster
Halfway through a 6-hour tow to the campground, the MARCALAR beeped — my passenger-side trailer tire was dropping pressure. Pulled into a gas station, found a nail, plugged it in 10 minutes. Without MARCALAR I would have been on the shoulder with a shredded tire and a damaged fender.
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No more pre-trip anxiety
I used to white-knuckle every mile towing my fifth wheel. Now I glance at the monitor and know every tire is good. The peace of mind alone is worth ten times the price. Wish I had this years ago.
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Finally, no batteries to deal with
I went through two other TPMS systems before MARCALAR. Both had sensors that went dead after a few months because the coin batteries died. Solar sensors? Genius. Set it up once and forget about maintenance forever.
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Saved my travel trailer on its first trip
Brand new trailer, brand new tires. Twenty miles in, the MARCALAR caught a temperature spike on the left rear. Turned out the bearing was going bad and overheating the tire. Caught it before a blowout that would have destroyed the whole wheel well.
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My wife insisted we get this
After our first blowout on I-40 — two hours on the shoulder, traffic screaming past, kids in the truck — my wife said we’re never towing again without a monitor. MARCALAR was the simplest one to set up and it just works. Every trip, every time.
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Best $50 I ever spent on my RV
I’ve spent thousands on my rig and this little monitor might be the smartest purchase of all. Knowing my tire pressures and temps in real time while I drive — no phone app, no subscription — it’s exactly what this should be. Simple and reliable.
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Accurate Reading
1-Minute Install
Solar Charging
Trusted by 10,000+ RV Owners, Trailer Towers & Truckers
Stop Worrying About the Tires You Can’t See
Every mile you tow, your trailer tires are invisible to you. A slow leak, a building hotspot, a tire losing pressure you won’t feel it until it’s too late.
Real Towing, Real Protection
Why Smart Towers Choose MARCALAR
See how MARCALAR stacks up against the systems that leave you changing batteries and troubleshooting apps.
| MARCALAR TPMS | Other TPMS | |
|---|---|---|
| Solar-Powered Sensors | ||
| No App Required | ||
| No Battery Replacements | ||
| Pressure + Temperature | ||
| Lifetime Warranty | ||
| 90-Day Risk-Free Trial |
Your Journey Ahead
See what the towing experience is like with Marcalar
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Phase 1
Unbox & Install
Screw on your sensors by hand, and mount the solar monitor on your dash. Total time: 5 minutes. No tools, no pairing, no app download.
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Phase 2
The First Drive
Pull out of the driveway and watch every tire's pressure and temperature appear on screen in real time. That knot in your stomach you didn't know you had? It's already loosening.
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Phase 3
The Pay Off
A slow leak. A hot tire. A pressure drop you never would have felt from the cab. MARCALAR catches it, you pull over calmly, and what could have been a $5,000 blowout becomes a 10-minute fix at a gas station.
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Phase 4
Tow Like a Different Person
No more thumping tires at rest stops. No more white-knuckling on the highway. No more wondering what's happening behind you. You just drive and MARCALAR watches what you can't.
One Monitor. Every Vehicle Protected.
Travel Trailers & Fifth Wheels
Travel Trailers & Fifth Wheels
The most common blowout victims. OEM trailer tires are notorious for failing without warning — and you can’t feel it from the cab. MARCALAR catches pressure drops and temperature spikes before they turn into roadside disasters.
Boat Trailers
Boat Trailers
Salt, sun, and long sits between launches wreck trailer tires from the inside out. MARCALAR monitors the damage you can’t see — so your next launch day doesn’t start with a blowout on the ramp road.
Horse & Livestock Trailers
Horse & Livestock Trailers
When you’re hauling live animals, a tire failure isn’t just inconvenient — it’s dangerous for everyone involved. MARCALAR gives you the early warning that lets you pull over calmly, not in a panic.
Utility & Work Trailers
Utility & Work Trailers
Heavy loads on rough roads push tires to their limits. MARCALAR reads up to 144 PSI and monitors temperature in real time — built for the trailers that work as hard as you do.
RVs & Motorhomes
RVs & Motorhomes
Your rig is your home on the road. A single tire failure can mean thousands in damage and days stuck waiting for repairs. MARCALAR supports up to 18 sensors — enough for your motorhome and your toad.
Older Trucks (Pre-2008)
Older Trucks (Pre-2008)
No factory TPMS? No problem. MARCALAR gives your old workhorse the same tire monitoring tech that comes standard on new trucks — for a fraction of the cost.
FREQUENTLY ASKED QUESTIONS
Will the external sensors cause a valve leak?
Will the external sensors cause a valve leak?
This is the #1 question experienced towers ask — and it’s a great one. External cap sensors can cause slow leaks on cheap rubber valve stems that flex under the sensor’s weight.
That’s why every MARCALAR kit includes free steel valve stems. Steel stems don’t flex, don’t degrade, and give the sensor a rock-solid seat. It’s a $15 upgrade most other brands make you buy separately — we include it because it’s the right way to do it.
How is MARCALAR different from other tire monitors?
How is MARCALAR different from other tire monitors?
1. Solar-powered sensors. Other systems use coin batteries that die every 6-12 months. A dead sensor can’t warn you — and most people don’t realize one went silent until it’s too late. MARCALAR’s sensors charge themselves.
2. No app required. Your tire data is right on the dash monitor. No phone to charge, no Bluetooth to pair, no app updates, no cell signal needed.
3. Price. Premium TPMS systems cost $200-$400+. MARCALAR delivers the same real-time pressure and temperature monitoring for a fraction of the cost — backed by a lifetime warranty.
What rigs does MARCALAR work with?
What rigs does MARCALAR work with?
MARCALAR works with any vehicle or trailer with standard valve stems. That includes travel trailers, fifth wheels, motorhomes, boat trailers, horse trailers, utility trailers, dump trailers, toy haulers, and trucks (including pre-2008 trucks with no factory TPMS).
The system reads up to 144 PSI and supports up to 18 sensors — so it handles everything from a small utility trailer to a Class A motorhome towing a car behind it.
What does the monitor actually show me?
What does the monitor actually show me?
The MARCALAR monitor displays real-time tire pressure (PSI) and temperature for every sensor. You see all your tires at a glance on one screen.
If pressure drops below your set threshold, or if temperature spikes above normal, the monitor sounds an audible alarm and highlights the affected tire. You’ll know which tire, what’s wrong, and how urgent it is — before it becomes a blowout.
What if I’m not satisfied?
What if I’m not satisfied?
Every MARCALAR kit is backed by our 30-day money-back guarantee. Try it on your next trip. If it doesn’t give you the peace of mind we promise, send it back for a full refund — no questions asked.
We also include a lifetime warranty on every kit. If any component fails, we replace it. We’re not going anywhere, and neither is your protection.