Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
These sensors let you monitor 4 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.
Features:
Specs:
Tire Sensor Installation
Note: To inflate or deflate a tire you must remove the sensor.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Easy to install and easy to pair and they seem to work. I paired them with TST series touch screen 770-D which I had. I haven’t used them on a road trip yet.
Love them! I bought these to add to my RV TPMS to allow me to monitor both my truck and my 36ft 5th wheel RV, for a total of 8 sensors. Worth the price to help ensure the safety of your rig and the precious family cargo inside!
These work great with my 507 head unit. Arrived a day early.
After a year of using the TST tire pressure monitoring system, I am very satisfied. It has worked on my truck and trailer in all weather and always alerted my of any low pressure condition. I would buy it again and would strongly recommend it to a friend.
The TST monitoring system works great, but be advised there IS a bit of programming / trial and error involved in getting the thing commissioned ... but once it is working, it is a very good accessory for the safety of travel trailers. Overall, the TST instructions could use a bit of improvement to make them more user-friendly. As usual, etrailer delivered on-time!
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.
I have used TST tire pressure monitor sensors for about 7 years on pickup, fifth wheel, motor home, and toad. I purchased additional TST tire pressure monitors for my motor home to replace the flow through type. I had the flow through type and found the amount of air they let in to fill the tire was too slow. The price was competitive. I was kept informed of the shipping, but it took a couple weeks to get the item. The item arrived in perfect condition and all the sensors work like they should.
Super fast shipping! Ordered 4pm on a Tue and they arrived Wed morning!
Arrived just in time, thanks for the fast shipping
This sensor pack is perfect for the trailer so both truck and trailer tires are monitored, to provide information before a situation becomes much worse.
After ordering this product, delivery was very fast. Installation and matching the sensors to my existing unit was easy. All worked well.
Worked great on my 2nd trailer
Tpms is great stuff. Use it on my motorhome and towed vehicle.
Roland
5/17/2025
I have used my TST products for 6 years and like them very much.
Couples with the main display very well.
Have used TST in the past and needed extra sensors for the new coach.....etrailer provided their normal fast service!
Stephen
3/1/2025
still working great after a year
Robin H.
3/2/2025
Fast shipping / product works great.
Great customer service. I was given their name and a direct line in case I had other questions. Impressive.
Scott
8/25/2025
Product continues to work great—no issues. Definitely gives peace of mind traveling down the road in our motor home
I have these on the Coach, 2 trailers and a Jeep. They work perfect, never a problem. Good product
Exactly what I ordered. And the package was received quickly.
Ray
TST makes great products and has great customer service.
Amazing customer service! I couldn’t believe how fast I got my order.
TST 770 is so easy to program to the sensors.
Haven’t used them yet but it was definitely the best price.
Steven
7/5/2026
The tst tire monitor is still working great. I wouldn’t take a trip without it now
I had the internal TST sensors and changed over to the caps with no issues. Easy to connect to the monitor and work great.
Great product. Added a set for a new tr ailer.
This tire sensor has continuously worked great for over a year now. Easy to install and setup, it gives me real-time information about the tire pressure and temperature on the vehicle we tow with our RV. Best of all, it is fully compatible with monitor unit in the cab of our RV! Highly recommend!
Do you have a question about this Accessories and Part?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Chris N.
10/8/2021
One year later and the product is still great. The tire monitoring system has been working perfectly and allows you to confirm tire pressures are good, if something feels a little off. In the event of low pressure, you are alerted to the situation before it becomes a big issue. This is a must have product for vehicle and trailer. ETrailer has been oustanding to deal with for a number of purchases, provide great sales and product support.