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Brass Tire Sensors for TST TPMS - Qty 2

Brass Tire Sensors for TST TPMS - Qty 2

Our Price: $106.00
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These sensors let you monitor 2 additional tires with your TST TPMS, or you can replace lost or damaged sensors. Theft-resistant covers require the included cap wrench for installation and removal. For use with rubber, brass, or steel valve stems. 1-833-496-1390 to order TST accessories and parts part number TST-507-RV-S2 or order online at Free expert support on all TST products. Guaranteed Lowest Price and Fastest Shipping for Brass Tire Sensors for TST TPMS - Qty 2. Accessories and Parts reviews from real customers.
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  • Reviews (50)
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TST Accessories and Parts

  • TPMS Sensor
  • Tire Pressure Monitor Parts
  • Sensors
  • TST

These sensors let you monitor 2 additional tires with your TST TPMS, or you can replace lost or damaged sensors. Theft-resistant covers require the included cap wrench for installation and removal. For use with rubber, brass, or steel valve stems.


  • Sensors allow you to monitor 2 additional tires with your TST tire pressure monitoring system
    • Designed for use with TST-507-RV-4-C and TST-507-RV-6-C
  • Brass construction is for use on rubber, steel, chrome, or nickel valve stems
  • Easy installation onto your tires' valve stems
  • Theft-resistant covers require use of included cap wrench for removal


  • Dimensions (each): 1-1/8" diameter x 1-1/8" long
  • Pressure range: 0 psi - 196 psi
  • Operating frequency: 433.92 MHz
  • Operating temperature range: -40 F - 176 F (-40 C - 80 C)
  • Storage temperature range: -40 F - 185 F (-40 C - 85 C)
  • Battery life: 1 year - 1-1/2 years
  • Quantity: 2 tire sensors
  • 3-Year limited warranty

Tire Sensor Installation

Tire sensor Install Diagram

  1. Place the included wrench around the sensor. You must use the wrench to put on or remove the sensor from your tire's valve stem.
  2. Screw the sensor onto the valve stem. Tighten the sensor until the air stops leaking and the sensor bottoms out on the valve stem. Give it a slight twist to fully seat the sensor while being careful not to over-tighten.

Note: To inflate or deflate a tire you must remove the sensor.

TST-507-RV-S2 Transmitters for Truck System Technologies Tire Pressure Monitoring Systems - Qty 2

Item # TST-507-RV-S2

Customer Satisfaction Score:

Customer Reviews

Brass Tire Sensors for TST TPMS - Qty 2 - TST-507-RV-S2

Average Customer Rating:  4.9 out of 5 stars   (50 Customer Reviews)

These sensors let you monitor 2 additional tires with your TST TPMS, or you can replace lost or damaged sensors. Theft-resistant covers require the included cap wrench for installation and removal. For use with rubber, brass, or steel valve stems.


After 3 blow outs in 3 years on our fifth wheel we finally made this purchase. Easy to set up, expandable, we also put a set on our boat trailer and motorcycle trailer, gives accurate pressure and temp readings. Gives us peace of mind. We can monitor the tires before they blow and rip out the sides of our camper and trailers! Must have purchase.


I installed this system on my class C motorhome. It saves having to verify tire pressure with a hand gauge and piece of mind that I don't have a leak on a dully tire while driving. You cannot feel a low or even totally flat dully tier, resulting in total shredding of that tire doing damage to the vehicle. This system was easy to install, keeps me informed on tire pressure and temperature. Instructions were easy to follow.


Bought these for my car to monitor the tires when towing behind my motorhome. They have worked flawlessly. Delivery from etrailer was on time. I will buy again if needed. I have always been satisfied with my purchases from etrailer.

They are still working great!
Robert - 05/10/2022


Tire sensors work well and keep me informed as I travel. The remote repeater is a must have for a long coach.

The TPMS is still working well. Lets me know if I need air before traveling in the am.
David - 03/24/2022


I have 4 TST sensors on our 5th wheel RV and wanted to add 2 sensors to the rear wheels of the tow vehicle. Our truck has pressure monitoring but not rim temperature and alarm for loss of pressure. The TST sensors take care of that and have been reliable. The new display is a nice upgrade to the older version.

After a year of using the TST system on our truck, we still feel that they provide temperature and pressure readings necessary for a higher level of safety. We tow a heavy fifth wheel camper and also have sensors on the 4 wheels of the camper. Thanks TST for providing a quality system.
Dave - 09/08/2021


Unit has been running for approx 1 year on the original batteries. I am monitoring 6 wheels on a RV and 4 wheels on a tow vehicle. My only minor complaint is the screen brightness. It appears to be brighter unplugged than when it is plugged into a 12V supply. This seems backwards to me. I like a bright screen but either one is readable.


I have 12 sensors between my truck and trailer. They work great and easy to set up.


These were purchased as a backup so have not used. Arrived well.


It's been a great product. Actually saved us from an overheated tire that probably would have blown had we not been alerted and then stopped to let cool down.


These worked fine, however I replaced them with the pass-thru version in my RV. Reused this on my tow dolly.


Came on time and Melissa T was very friendly and helpful.


Sure gives me piece of mind to see the tires temperature and pressure on my RV and towing vehicles. This is after experiencing a tire going flat and not knowing it.


We use these TST TPMS sensors and booster on our horse trailers, utility trailers, and live in trailers. They add a great degree of safety and if you have ever towed trailers and have had good tires fail due to low pressure and/or heat, you don't want to leave home without them. I am an ASE certified mechanic and my wife raises horses. We put many miles on our trailers and although I do all my own tire replacements, nails and other road debris find a way to puncture otherwise healthy tires. The problem with a trailer unlike your tow vehicle which has TPMS installed, is that trailers aren't required to have TPMS as yet. One doesn't know there is a problem until a tire has failed sometimes taking the tandem tire with it. Why would you not want to protect these wonderful animals and the traveling public at large by knowing what condition your tires are in on the trailer? The simplicity of the valve stem units is great and the internal band types are even better but of course requires dismounting and remounting/balancing the wheel assembly. My wife has been a victim of tire failure with horses aboard in the middle of summer and it's no picnic. Luckily there was no incident other than the normal pain in the butt misfortune. I highly recommend these types of products and having peace of mind on the highway is worth many times the cost of the system which I think is very reasonable for what the system does for safety. To go to the extreme, I carry a spare plus another spare should one tire take out another. Again, cheap insurance. etrailer has been great to deal with and I will continue to do business with this company as they are very customer oriented which is not the case with many companies these days.


great service & price. Arrived when pro mised.


I have these installed on my 41' fifth wheel and while traveling on interstate 80 in Pennsylvania My alarm sounded.
I immediately pulled of the road and found that I had picked up a piece of steel. (ruined the tire)
With the alarm sounding so quickly I saved running the tire flat and possibly doing more damage to the trailer other than just replacement of the tire. The monitoring system worked so well when I returned home I ordered sensors for two additional trailers that I pull.
I would highly recommend this product to anyone that pulls a trailer.


Quick delivery


Great service. Also came early and very happy with order. Thanks


Great product. Great service from etrai ler.


Etrailer shipped our order the same day snd we received it in a few days. Very pleases with their service and selections.


Prompt delivery. Works perfect with no problems.


Was delivered fast, these were backup just in case one of the original ones in the kit I purchased failed while traveling.

I have traveled several thousand miles. Two long trips out west and back home to western North Carolina. These sensors are really reliable and add to the safety of our trips
Donald - 06/02/2020


Perfect for the trailers I tow


Didn’t get to try out the sensors...unknowingly my RV was already equipped. But as usual, I’ve always had professional, competent service at Etrailer.


Price was excellent and was received as promised. Many thanks to etrailer.


Thank you for the great service and the professional attitude of your employees. Sharon took care of everything and it all played out just like she said it should so a big thanks to Sharon.


Show More Reviews

See what our Experts say about this TST Accessories and Parts

  • Availability of Replacement Sensors for TST Truck Tire Pressure Monitoring System
    The smallest quantity we can obtain the sensors in for your # TST-507-RV-S2 TST Tire Pressure Monitoring System are sold in are pairs like part # TST-507-RV-S2, I'm sorry to say. At least this way, you'll have one spare sensor.
    view full answer...
  • How to Install the Brass Tire Sensors for TST TPMS Systems
    On the Brass Tire Sensors for TST TPMS part # TST-507-RV-S2 there is a straight forward way to install them. I have included a video for you to check out on it. The short form is that the brass nuts go on the valve stem, the small o ring goes in the sensor, the sensor is screwed on to the stem and then when tight the brass nuts are backed up until they make contact with the sensor acting like a jam nut preventing removal. This can be accomplished using the provided wrench. The larger o...
    view full answer...
  • Correct TST Tire Sensors to Add 2 More Sensors to a TST Monitor with 2119 Markings
    Yes, the Brass Tire Sensors for TST TPMS # TST-507-RV-S2 are the correct tire sensors to work with your current TST display with 2119 markings to add 2 more tire sensors.
    view full answer...
    Image 1 for Image 2 for
  • Recommended Tire Pressure Monitoring System with 12 Sensors
    The TST TPMS for RVs - Color Display - Signal Booster - 6 Tire Sensors # TST-507-RV-6-C are a great choice for your Class A and trailer. This company actually started out making TPMS for tractor trailers, so these are extremely durable and I really like the color monitor on the system since it's easy to read. Because of the length of the two vehicles I do recommend adding the Signal Booster # TST-507-R. Since the kit comes with 6 sensors you will need 6 more which can be added with #...
    view full answer...
  • Replacement Tire Sensors and Signal Booster For TST 507 Tire Pressure Monitoring System
    As you have the Monitor # TST-507-D-C you will simply need the Signal Booster # TST-507-R to go along with some new tire sensors. You do have the option of what sensors you will prefer to use from the list below. Brass Tire Sensors for TST TPMS - Qty 2 # TST-507-RV-S2 Brass Tire Sensors for TST TPMS - Qty 4 # TST-507-RV-S4 Flow Through Tire Sensors for TST TPMS - Qty 2 # TST-507-FT-S2 Internal Tire Sensor for TST TPMS Systems - Qty 1 # TST-507-INT-S1 These are the only sensors and quantities...
    view full answer...
  • Will The Display For the TST TPMS Kit Show Tire Pressure and Temperature While Driving?
    The TST TPMS for RVs # TST-507-RV-4-C in normal operation will scroll through each tire one by one and display the information on that specific tire for 5-6 seconds. You can still manually scroll by using the + and - buttons and it will display the tire information for 10 seconds before resuming to cycle again. When you have an alert you will hear an audible alarm and the tire with the issue will begin to flash with the tire information displayed on the screen. You will be able to pause...
    view full answer...
  • TPMS System for Dual Rear Wheel Motor Homes with Valve Extenders
    The TST TPMS for RVs part # TST-507-FT-4 is ideal for your situation. It offers 4 flow through sensors. These sensors will attach to your factory valve stems then your extenders can attach to them. This will eliminate the issue with the excess weight of the sensors being to great on the end of the extenders causing them to fail. This will take care of the 4 rears now for the 2 fronts use the Brass Tire Sensors for TST TPMS part # TST-507-RV-S2 which will give you the two standard front...
    view full answer...
  • TST Tire Pressure Sensor with Color Display with 12 Total Sensors
    For a TST TPMS system with a total of 12 sensors you'd need the part # TST-507-FT-6-C for the color display setup with 6 sensors and then you'd need a quantity of 3 of the part # TST-507-FT-S2 which is a pair of sensors. The prices are available at the links below.
    view full answer...
  • Will the TST-507-RV-6-C Work on an RV/Toad That is 68 ft Long Overall?
    I spoke with my contact over at Truck Systems about the TPMS for RVs # TST-507-RV-6-C and those TPMS sensors will work for your RV, but he mentioned that you would likely want to use the system that has the Flow-Through caps instead, which can be found with part # TST-507-FT-6-C . This is the same exact system with the color monitor, but the caps will allow you to fill your tires without removing the TPMS caps if the need arises. Since there is not a pack of 12 sensors available, you'll...
    view full answer...
  • Can Valve Stem TST Sensor Replace Internal Sensor
    Since your display is the part # TST-507-D-C the valve stem sensors like the # TST-507-RV-S2 can be used with it. The internal sensors we also offer with part # TST-507-INT-S1.
    view full answer...
  • Tire Pressure Sensors Compatible with the TST Tire Pressure Monitoring System
    The Brass Tire Sensors for TST TPMS - Qty 2 # TST-507-RV-S2 and the Signal Booster for TST TPMS # TST-507-R will work well with your current monitor. Many people have done this and the monitor works well with the caps as well as the flow through sensors in whatever combination you desire.
    view full answer...
  • Best TPMS for 2015 Tiffin Phaeton and Flat Towed 2014 Honda CRV
    I'd recommend a system from TST. Their # TST-507-RV-6-C TPMS system incudes 6 sensors, a signal booster and a color monitor. Extra sensors are available in a quantity of 2 as part # TST-507-RV-S2 or 4 as part # TST-507-RV-S4. The sensors provided are compatible with rubber, steel, chrome or nickel valve stems.
    view full answer...
  • TST Sensor Type Compatibility With TST TPMS for RVs # TST-507-FT-6-C
    You will be able to use the Brass Tire Sensors # TST-507-RV-S2, Flow Through Tire Sensors # TST-507-FT-S2 and Internal Tire Sensors # TST-507-INT-S1 with your TST TPMS for RVs # TST-507-FT-6-C. You can set up your TST TPMS to monitor up to 38 tires on 4 different vehicles.
    view full answer...
  • Recommended Tire Pressure Monitor System for Double Towing
    If you are just wanting to monitor tires, then a Tire Pressure Monitoring System is the way to go. I recommend the TireMinder TPMS for RVs - LCD Monitor - Signal Booster - 4 Tire Sensors # TM-A1A-4. The monitor is able to support up to 22 tires. The TST TPMS for RVs - Color Display - Signal Booster - 4 Tire Sensors # TST-507-RV-4-C is a color monitor option that supports up to 38 tires. You can use the Brass Tire Sensors for TST TPMS - Qty 2 # TST-507-RV-S2 or the Brass Tire Sensors...
    view full answer...
  • TPMS to Use with Wheel Masters Airless 4-Hose Inflation Kit
    I reached out to my contact at TireMinder who said that their Smart TPMS # TPMS-APP-6 is only compatible with valve extensions if they are solid steel and not braided. Since the Wheel Masters Airless 4-Hose Inflation Kit # WM82082 uses braided hoses you'll need to use a different system. I reached out to my contact at TST who said that their sensors are compatible as long as the end of the valve is secured with a bracket like what comes with the Wheels Masters kit. Since this is the case...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
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Employee Tyler C
Edited by:
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Employee Jeff D
Installed by:
Jeff D
Employee Adam E
Installed by:
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