Spare Sensors are available to monitor extra tyres:

If you're after spare sensors the part numbers are TP-05S (internal valve) and TP-06S (external cap)

Do you know how much air is in your tires?  How about in your trailer tires? 

Most people do not!  In US all new passenger cars are required to have sensors to measure tire pressure; and other countries are likely to follow.  It is just as important to maintain the correct tire pressure in your caravan and trailer tires when you are towing.

Don’t be a statistic…

  1. 75% of roadside flats are caused by a slow leak or under inflation
  2. 250,000 accidents a year in the US are caused by under inflated tires
  3. 15% under inflation reduces fuel mileage by 1%!

Masten's tire pressure monitoring systems (TPMS) are designed to be installed directly in your car, 4x4, caravan, trailer etc tires to provide accurate pressure and temperature readings.  A warning will trigger if your pressure is below your set pressure, and you can set your desired pressure range. 

Benefits of the Masten system: 

  • Easy to install display with option to hard-wire or simply plug into cigarette adapter 
  • continuously updated pressure & temperature readings
  • the ability to set your own baseline pressure
  • high temperature warning
  • unique adjustable valve design allows sensor to fit almost every rim design

External Cap sensors are a very convenient and lower cost option. Why are internal valves better? 

  • A sensor mounted directly inside your tire will provide a more accurate pressure and temperature reading however needs to be professionally fitted
  • A cap design is DIY Install but can be damaged by a road hazard, can be stolen, may cause vehicle balancing issues, and can potentially provide inaccurate readings if installed incorrectly


Low Pressure Alarm Function:

The first alarm system will sound when the pressure is under or over 25% of the pressure you set, the second alarm will sound when under or over 30% of the set pressure.

For example, if you set the pressure as 30 psi the alarm will sound when under 22.5 or over 37.5psi as first alarm, then the second alarm will be on when under 21psi or over 39 psi. 


Properly inflated tires will: 

  • Improve vehicle handling
  • Increase fuel economy
  • Reduce tire tread wear
  • Improve safety and protect important items you are towing



Tyre Pressure Monitor System Description

The Masten TPMS is a Premium, High-End TPMS (Tyre Pressure Monitoring System) with color LCD display wireless. This TP-05 TPMS Kit includes 4 Internal (professionally mounted) sensors. The benefit is reduced risk of loss. The downside is they are not as convenient to fit at the external cap style TP-06 sensors.

Product Review
For a review please click on the following link:
h t t p : / / w w w . p r a d o p o i n t . c o m / s h o w t h r e a d . p h p / 1 6 2 2 9 - T P M S - R e v i e w - DigOptions

The Masten TP-05 and TP-06 is a High Quality product which has been Designed and Made in Taiwan

The Masten TP-05 and TP-06 TPMS Kits can measure up to 87psi. The highest standard pressure should be set no higher than 69psi. (Because the first high pressure alert will start when reaches 125% of the standard pressure).

DIG Options also offer the Masten TPMS for Trucks which can measure up to 188psi. The highest standard pressure should be set no higher than150psi. This is via special order. please message us for information.



  1. Color LCD TPMS Monitor Display
  2. Use of common valve (easily available and replaceable)
  3. Monitor up to 27 tyres/tires
  4. Programmable vehicle mode (car, pickup, light truck, trailer etc)
  5. Measure tire pressure, tire temperature, sensor battery level, signal strength and vehicle battery level
  6. Bi-directional (2 ways) communication on sensor.
  7. Optional TPMS Tire Sensor Diagnose Tool LF Remote Control allows you to Force sensors to transmit signals WITHOUT inflating or deflating tire pressure and learn or exchange wheel positions.
  8. Ability to set a 2nd pressure range for Off road driving (low pressure)
  9. Monitor Car Battery and Sensor Voltages/Signal
  10. Early warning of slow leaks
  11. Detects temperature changes
  12. Save on fuel comsumption

What's Included 

  1. 4 Long Life Sensor Valves
  2. Sensor Receiver/TFT Full Colour Dash-mount Monitor
  3. Cigarette Socket Charger
  4. Instruction Manual
  5. All necessary cables

Why do you need a TPMS?

Optimal Driving Safety: Under-Inflated tire pressure will result in reduced vehicle stability / control ability and deformation tires, while the Over-Inflated tire pressure will increase your chances of a sudden flat tire.
Fuel Economy: With instant monitoring on the tire pressure, the TPMS device may save you up to 4% of fuel on average with proper tire pressure.
Extended Tire Life: Under-Inflated tire pressure will cause excessive tire wear by up to 50% more if the tire is Under-Inflated by 9%.
More environmentally friendly: Keeping the tire pressure at the correct pressure level can reduce CO2 emission up to 40%, helping to reduce the global warming effects.

FCC Notice

This device complies with part 15 of the FCC rules of America. Operation is subject to the following two conditions:

This device may not operate because of the harmful interference. The undesired operations may cause system failure. This equipment has been tested and found to comply with the limits for Class B devices, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference. This equipment can radiate radio frequency energy and if not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a correct installation.

If this equipment does cause harmful interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the factoring measures.

Reorient or relocate the receiving antenna. Increase the separation between the equipment and the system. Change the place and connection way of voice console.NCC Caution: RF can not work upon the security of aviation/sail, and the legal communication. If there’s any interference, it should be stopped immediately until it’s solved.



Any changes or modifications in construction of this device could void the user’s authority to operate the equipment. To comply with the FCC RF exposure compliance requirements, this device’s antenna must not be co-located or operating to conjunction with any other antenna or transmitter.


MASTEN’s TPMS system is designed to monitor the tires condition and alert the user if there is any irregularity detected.
Use of chemical sealants for temporary resealing or re-inflation in tire assembly may affect or even damage the sensors function.
For your own safety, please read and understand the instruction manual before proceeding to the installation and setup.
Please seek qualified personnel for proper tire sensor installation.
Only use the power cord cigarette adapter supplied by DIG Options.
Do not use the power cord in any other USB device. It is NOT USB compatible and may damage your USB device.
MASTEN shall not be held responsible for any damage caused to any USB device if you use this power adaptor in any other device.
When you unplug the power adaptor, do not pull from the cord. It may damage the adaptor.
If the power cable is damaged in any way, and is under warranty, contact your dealer.



  Internal Valve Sensor/Transmitter External Cap Sensor/Transmitter Notes
Operating Temperature -40 C ~ 125 C -40 C ~ 125 C  
RF Modulation FSK ( avoid noise) FSK ( avoid noise)  
Range of pressure 0 - 6.9bar (101psi) 0 - 5.4bar (78psi)  
Valve Stem Standard metal valve for car/truck valve (8V1) Heavy Machinery vehicles need order 12V1 type
Battery Origin Japan Japan  
Sensor IC GE, Infineon.TI GE, Infineon.TI  
Frequency 433.93MHz 433.93MHz  
Battery life 5~8 years 1~2 year battery changeable  
LF Trigger Yes Yes  


Barcode # 2000000002880
Brand Masten
Shipping Weight 0.5300kg
Shipping Width 0.210m
Shipping Height 0.220m
Shipping Length 0.080m
Assembled Width 0.210m

2 Year Warranty

Tpms Tyre Pressure Monitoring System Car 4wd Caravan 4 Internal Sensors 12v 24v has a rating of 4/5 based on 1 reviews.

The Preasure Is Off

30 December 2015
I recently purchased an internal Tyre Pressure Monitoring System (TPMS) with the dedicated display. I had been looking around on various forums and had seen good reports on DigOptions mainly for their head units and some for the TPMS. I did the search and found them on eBay as well as their direct web address. I wrang them and spoke to a real person who was helpful in helping me decide on which system was for me. So instead of having to complete a series of online hurdles I just handed of the CC details and was done. I also decided to get an additional sender for the spare wheel. Within a couple of days of ordering and paying for them, I received the parcel in the post. Since I was purchasing new rims and tyres it was the perfect opportunity to get them into the tyres without added costs of wheel balances etc. My car is a 76 series Landcruiser and to fix up a silly Toyota design fault you need to put neg 55 offset rims on the rear and 0 offset on the fronts. The internal part of the monitors fitted nicely to the 0 offset rims, hugging the inner rim nicely, however the neg 55 rims, since that are deep and have a large flat inner surface, the sensor protruded above the line of the rim. It wasn't a big issue but on some other systems they have the ability to adjust the sensor angle to avoid this sort of problem. (If I air down my tyres for sand work I need to be carful to not go too low or they will get squashed and broken. The spare will sensor did I not work out of the box and I needed to do a manual install of it. This took some time to work out as the instructions have a repeated section in it and I was going around in circles until I got so frustrated that I read the end of the manual first :) Once all 5 sensors were up and running I changed a few alarm points and the install was done. The screen of the monitor is easy enough to read. The only other down side could be that you cannot see all Tyers at once and you have to wait for the cycle of the tyres to scroll through to see them all. Obviously once an alarm is raised then that tyre will be the one to show up straight away. Overall..... Would I buy again? Yes Would I recommend them? Yes (better internal than external) Am I happy with the company? Yes Thanks and I hope you found this helpful. HG Rathdowney Qld

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