TyreWatcher X2 Caravan TPMS – 6 to 12 Wireless Sensors


Tyre Watcher X2 (Version 3) is our tyre monitoring sensor system designed to monitor your vehicle & caravan tyre pressures and temperatures. It can have up to 12 sensors connected, so you can use it on a range on single or dual axle caravans and monitor spares or airbags. Also, simple to install with external wheel sensors that screw onto the tyres valves with locking nuts to prevent theft. (We also have internal Sensors)

The display unit is designed to be placed on your dash or windscreen, so it is easy to read and is also solar-powered. Allowing it to be constantly charging and not need any external cables keeping your dash clutter-free.

A great system to ensure your tyre pressure matches the temperature & road conditions and you do not get caught out with a slow leak or overinflated tyres causing blowouts. Quality unit built using a German manufactured chip to ensure reliable and accurate readings. Up to 12 external sensors with copper cores make these tough and waterproof – built to last in Australian conditions.

  • Range up to 15m. (Repeater May Be needed on some setups)*
  • Improve your fuel economy with correct pressures
  • Ensure you catch any tyres issues early
  • Up to 12 Tyre Sensors
  • Can handle up to 185PSI tyre pressure (Small Sensors 99PSI)
  • Reduce your tyre wear
  • Easy to read display with backlight for nighttime
  • Solar-powered display with a built-in battery so no cables
  • Leak and temperature alarms
  • Updatable software that is constantly being improved
  • Connects to a phone app. (Coming Soon)
  • 2-year battery life on external wheel sensors*
  • A repeater is available if needed*
  • 24 Month Warranty (Not on Batteries)
  • Australian support

IMPORTANT: See product limitations below BEFORE purchase.

(23 customer reviews)
SKU: TPMSTWX Categories: ,

First Time Setup Video

What Kit Do You Need

Video Guide

What the Screen Display Means

Caravan TPMS Great setup for vehicle and caravan or trailer as it provides you with 6 to 12 external or internal wheel sensors with live pressure and temperature monitoring. Easy to install and the system turns off and on automatically as the sensors are activated by movement. You can also choose bar or PSI as your setting so you can choose the unit of measure that you prefer. Ensure you know what your tyre pressures are doing!

What Sensor setup do I need?

The options above give the kits that we have they can contain large or small sensors. The difference between these two sensors is that size, range and max pressure. So normally most people will run the small sensors on their vehicle and then the larger sensors on the caravan.

Live Data:

The tyre pressure monitoring system (TPMS) monitors tyre pressure/temperature status in real time, which will transmit data to the screen on your dash and has an alarm and flashing warning icon if there is a problem. You can set the high and low alarms pressures between 2PSI – 189PSI. So for example if you have the low pressure alarm set at 30PSI when a tyre reaches this pressure the unit will beep and flash to warn you. Same goes for the high pressure alarm. In addition, there is also an alarm if the tyre increases or decreases in pressure to quickly so you will be warned of slow leaks etc.

Quick Disconnect: 

This allows you with the press of a button to turn off the rear sensors that you will have on your caravan so you can turn these off when you drop off the van. And keep using the system just to monitor the vehicles tyre pressures.

Wide Application:

This system is suitable for any vehicle and caravan were six to 12 tyres need to be monitored with the maximum pressure of the tyre being 189psi (Large Sensor). You have a wide range to set your low and high pressure alarms and this is easy to do. Also you can set the temperature alarm so you will get a warning if it reaches this level. This can be great to warn your of bearing problems or other issues  that cause increased temperature.

Long Range*: 

Long wireless range up to 15m so no problem if you need to use them on a longer vehicle or on your wheels of your caravan or trailer you are towing. With this range you can be confident that you will get accurate readings to the display on your dash. So thats 15m from your dash to your wheels covering most setups. In the case of getting drop out we also have a repeater that you can add in. It’s best to test it first as there are a number of reasons why a repeater may be needed.

*Some Caravan/Trailer setups may need a repeater. This all depends on your set-up (length, obstacles etc.). If you are experiencing sensor drop-outs on a Caravan/Trailer set-up (even if within operating range) with this unit then a repeater may be necessary. The performance of this unit is subjective on Caravan/Trailer set-ups. It may work on some and not on others. 

Digital display:

LCD screen that sticks to your dash or windscreen comes with sticking pads so you can choose where you want to put your system so that it is easy to read. Bright backlight and easy to read numbers allows you to see the status of your tyres easily during the day and night. Also being solar powered means there is no cables to fuss with.

LCD Screen Charging Guide: Please charge for the first few days via USB, using a power charger that has a power output of more than 9V and 2amps. 

Power supply: Solar charging so you can just stick it and forget it. Has a built in battery so if you do not see any sun for a few days that is not a problem. Also, it turns off when there has been no movement from the wheels so no problem when stored in garage or under cover. The battery life will depend on the driving and the amount of sun so at times will require cable re charge. Also you can leave plugged in at all times if you do not want to mount on dash or you are doing all night driving. 

External sensors: Which are easy to install, have a two year battery life and are weather proof. Built to last and be accurate with accuracy +/- .15psi. After two years if the battery does go flat they are easy to replace and just take common CR1632 batteries. Spare sensors can be bought by clicking this LINK.


*Batteries may or may not last up to two years on some units (depending on use and battery condition). Batteries are not covered by the product warranty.

*Some Caravan/Trailer setups may need a repeater. This all depends on your set-up (length, obstacles etc.). If you are experiencing sensor drop-outs on a Caravan/Trailer set-up (even if within operating range) with this unit then a repeater may be necessary. The performance of this unit is subjective on Caravan/Trailer set-ups. It may work on some and not on others. 

IMPORTANT NOTICE: Depending on your valve stem quality, age and your wheel material, sensors can rub on rim edge. This is just something to keep an eye on and usually does not happen. If it does, it usually happens on lower quality or very old valve stems. Our advise is to discontinue use of the TPMS so as not to further scratch your rims. OBD2 Australia will not be held responsible for damages caused by the sensors to your rims under these circumstances.


Display Unit:
150mm x 53mm x 25mm

Large Wheel Sensors:
Diameter: 21mm
Height: 26mm
Weight: 13g
Max Pressure: 189psi

Small Wheel Sensors:
Diameter: 20mm
Height: 16mm
Weight: 9g
Max Pressure: 99psi

Parts & Options

We have spare parts and add on options for the TyreWatcher X2 system we have these listed below with links.
Repeater: This will be needed if you are seeing the number 88 on any of your pressure readings. This means that there is a range or interference issue. Every setup is different so there is no way to know if you will need one or not. The repeater can be mounted on the A Frame or rear of vehicle up higher and needs 12V power. See repeater here.
Internal Sensors: Some people like to run internal sensors. These sensors sit inside your tyre so the tyre needs to be removed to fit these. These can be added to your system later if you want to add internal sensors next time you change tyres. See internal sensors here

Large Sensors: These are the larger sensors usually used on the caravan. See Here

Small Sensors: These are the smaller sensors usually on the vehicle. See Here

Sensor Batteries: These are common type CR batteries can be purchased locally. 

Spares Kit: Please contact us for any other parts


Video Series

First Time Setup

Menu & Icon Guide

Installing External Sensors

Mounting Options

Changing Sensor Battery's

Updating Software iOS iPhone

Updating Software Android

Repeater Setup


Do they do temperature readings?

Yes the sensors read both the pressure and temperature in your tyres. This is then displayed on the LCD. It is very interesting to see the relation between temperature and tyre pressure. This can also help you detect problems early if there is a higher temperature in one tyre. As these could be linked to a bearing or brake issue.

Will the tyre sensors last?

Yes we have tried and tested these units to make sure that they last with what Australia can dish at them! Dust, Salt Water, Water, Sand, Corrugations, Dust, Corrugations, Dust. We also sell spares if needed.

Do all the sensors show on one screen?

Yes all the sensors will show on one screen.

Will the sensors read airbags?

Yes you can use the sensors on axle 3 position to read airbag pressures. 

Firmware & App & Manual Updates

Version 2.9 (19-03-2022) – (Click on link to Download)

Version 2.7 (12-3-2022)

See video above in video series how to update the unit.

Manual PDF (Work in Progress) 

Quick Start Guide

Additional information

# of External Sensors

4 Small 2 Large = 6 Sensors, 4 Small 4 Large = 8 Sensors, 8 Small = 8 Sensors, 6 Small 4 Large = 10 Sensors, 6 Small 6 Large = 12 Sensors

23 reviews for TyreWatcher X2 Caravan TPMS – 6 to 12 Wireless Sensors

1-5 of 23 reviews
  1. TyreWatcher Monitoring Sensor System
    Works a treat and gives peace of mind when travelling.
    I’ve wrecked tyres before when not noticing they had lost pressure but luckily haven’t had a blow-out.
    Now I can see every tyre’s pressure and temperature in real-time.
    Highly recommend!!!
    The OBD2 Team were amazing, quick responses, great communication, & very helpful!!
    Make sure you read and watch their tutorials!

  2. Good products

  3. excellent service from all involved.

  4. Fitted TyreWatcher to the Tug and Van before doing our lap of Oz.
    Extremely happy with the product as I saved us from possible disaster by warning of a over temp tyre caused by a wheel bearing problem.

  5. Very complicated to setup, once u understand the process it works fine.

Add a review
TyreWatcher X2 Caravan TPMS - 6 to 12 Wireless Sensors TyreWatcher X2 Caravan TPMS - 6 to 12 Wireless Sensors
* Rating is required
Your review
* Review is required
* Name is required
Add photos or video to your review

Questions & Answers