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Do I Need a TPMS Booster for My Caravan?

Updated 2 min readBy the flatMATE team

The Aura A6 screen and six sensors.

A booster (also called a repeater) is a small unit that passes the signal from the sensors at the back of your van to the screen in your car.

Whether you need one depends on how long your rig is and what sits between the sensors and the screen.

What a booster does

Each sensor sends its reading by radio to the screen on your dash. From the van's back axle, that signal has to travel the length of the van and the car, through the van body and anything metal in the way.

On a long rig the signal can get weak, and the back tyres drop off the screen or come and go. A booster sits partway along the rig and relays the signal, so every tyre keeps reporting.

Signs you need one

  • Readings from the van's back tyres drop out, or come and go.
  • Your rig is long: a big tandem van, a fifth wheeler, or a car towing a long trailer.
  • There's a lot of metal between the sensors and the screen, such as steel toolboxes or a steel-framed van.

If every tyre reads steadily on the screen, you don't need one.

Our kits and the booster

Aura A6 Tow Pack. The 6-sensor Aura kit for a car and single-axle van comes with a booster in the box, already paired.

Guardian TPMS. The Guardian reaches up to 30 m on its own; up to 60 m with the booster. Every Guardian size, from 6 to 26 tyres, takes the booster add-on. Add it with your kit, or on its own later if the back tyres drop out.

How to decide

  1. Count your tyres. Car plus single-axle van is 6. Car plus tandem van is 8. Add any spares you want watched.
  2. Measure your rig from the front of the car to the van's back axle.
  3. Think about what's in between. A steel-framed van or big metal toolboxes can weaken the signal.
  4. Still unsure? Email us your rig and we'll tell you whether a booster suits it.

Not sure how many sensors you need? Read how to choose a TPMS for your caravan, or see caravan TPMS for every setup.

Not sure what your rig needs? Email us your rig: info@flatmate-tpms.com

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