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TPMS monitors RV tire pressure and temperature and sends updated info to wireless color monitor every 5 minutes. Flow through design lets you inflate tires without removing sensors from valve stems. Presets let you monitor up to 4 separate vehicles.
Features:
Specs:
This TST tire pressure monitoring system monitors the pressure and temperature level of the tires on your RV, motorhome, 5th wheel, motor coach, or trailer. The system utilizes flow through sensors that attach to the valve stems of your tires. The flow through design lets you inflate or deflate your tires without removing the sensors. When a tire sensor detects an anomaly, it will wirelessly transmit an alert to the included digital color monitor. Your monitor will emit flashing lights and an audible alert to notify you of an issue, and it will display details regarding the anomaly. A booster is included to strengthen and amplify the signal that the sensors are sending to the display monitor.
Initial Setup
The TST TPMS is easy to set up and includes all mounting hardware and tools for installation. First, assign the tire sensor positions through the monitor's Learning Mode. Label each sensor with the corresponding numbering code sticker so that you know which sensor is programmed to which tire position. When you are setting up the sensors make sure the one you are programming is at least 2' away from the other sensors. Otherwise the other sensors will interfere with the sensor you are attempting to program. Once the tire sensors have been recognized by the monitor, attach them to the valve stems of your vehicle's tires. Next, install the booster and connect it to a 12-volt power source on your vehicle or trailer.
Use the included suction cup holder to mount the color monitor on your windshield so you can monitor your tires while you drive. You can also use the included rubber, non-slip cradle mount to set the monitor on your dashboard.
TST Color Monitor Display
TST Color Monitor Function Buttons
Multiple Wheel Layouts
You can program multiple layouts into the monitor, and you can scroll through each setup on the screen. This system can support up to 4 tire layouts and up to 38 tires total. Make sure to set your high and low pressure alarms for each layout that you are using. Some examples of popular layouts are shown above.
Tire Sensor Installation
Note: To inflate or deflate a tire it is not necessary remove the sensor. Simply unscrew the cap.
Booster
The booster - or repeater - amplifies the signal strength that the sensors send to the monitor. Booster installation requires a 12-volt power source. It is waterproof and can be mounted inside or outside your vehicle with the included mounting hardware. On a trailer, you can mount it in the battery box in front of the propane bottles. On a 5th wheel, you can install it in the house battery bay underneath the overhang. You will want to place it below the bank of mirrors so they don't bounce the signal back and cause the system to malfunction. On coaches with towed vehicles, you can install it in the back battery bay. The power draw is so minimal that you can leave the booster installed without running the battery down. If you decide to unhook it for storage remember to reconnect when you are ready to hit the road. A red light on the repeater indicates that the unit is connected to power and operating correctly. Repeater installation is required for warranty compliance.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
The TPMS is an excellent product and recommended to anyone who pulls a trailer or towed vehicle. The flow through sensors are very convenient. This is my second TPMS by TST and I was very satisficed with the performance. The color screen is far easier to read in daylight. Programming took me a while as I am not to comfortable with electronics. After all was said and done, take my advice from a retired Hwy. Patrol Officer, Your safety is number one.! Don't leave home without one.
Bought this product for my single axle travel trailer. I use one for each tire, one on the spare, and carry a spare with me for just in case. I have an F-150 SCAB towing a 21’ TT. It usually takes about 2-4 minutes for the module to connect to the monitors On each tire, but after that the connection is solid. I have not found a need to connect the repeater, but your usage may vary.
I installed these sensors on my Montana 5th wheel about a year ago. They have been very reliable and give me additional piece of mind while traveling. I had one tire blow out during this time and the system alarmed immediately. Also, once charged the monitor battery last for quite a long time allowing you to unplug from the charger and move the monitor around the truck cab for the best visibility during changing light conditions.
The installation was fast and easy. The TPMS sensors are inaccurate and constantly send false information. I set all the tires at the same air pressure. While traveling I noticed several of the sensors sent readings that showed higher air pressure and higher temperatures. I pulled over and rechecked the pressures with my air gauge. all tires were at the proper pressure. The sensors are very inaccurate.
The tpms on my trailer tires have been wonderful. Last summer one of the tires had issues and I wouldn't have known if it wasn't for my tpms. However having the heavy weight of the Tom's sensor on the valve stem was causing the stems to tear. So I had the tire company install steel stems and I have no problems now. So recommend steel stems with this system.
When I bought these I didn't read the part about these required metal valve stems. I put them on and with in a 100 miles I had a tire loosing air, these TST sensors are to heavy for standard rubber valve stems. After putting the new metal stems on I haven't a minutes problem.
These read out pressure as well as temperature per tire, they do alarm when pressures drop,they areare worth every penny. I do recommend these for anyone pulling an RV or boat. Also you can purchase more of the sensors
The system( 4 flow through valves) has worked great for a year and approximately 7000 miles. We have it on a two axle 28 foot toy hauler with 10 ply tires. It warned us of a tire failure due to a sharp rock puncture while traveling on a gravel road and prevented any damage to the RV or wheel. I set the high pressure warning 16 psi above recommended tire pressure of 80 psi and on a 100 degree F day it sometimes sounds the alarm on one or both tires that are on the sun side of the RV. The tire pressure has never gone past 16 psi above set pressure. The color display is hard to see in the bright sun when placed on top of the dash board. This device has given me great peace of mind while traveling.
We are so happy with theTST tire pressure monitoring system we bought for our fifth wheel! We use it every time we travel and go camping, and it has not failed to work as promised. In fact, we were getting ready to leave on a week-long camping trip a couple of days after I had installed this system (which is really easy to do), and on the morning of our departure as I pulled our camper out of its port, the TPMS audible alarm went off! I had checked our tire pressures the night before, but somehow a screw had become lodged in the sidewall of one of our tires and I guess moving it caused it to lose air pressure. I would never have caught this without the TST TPMS system—at least not until we were on the road! So, yes, I highly recommend this great addition for safety and peace of mind while traveling!
Have had these for a year now and they work great. The only reason I didn’t give 5 stars is because one of the flow through sensors had rough threads and is very hard to get started onto the valve stem. I never have any connection issues on my 38 ft 5th wheel with the booster installed.
TPMS system works great, customizable alarm settings for both pressure and temperature. Only complaint is that the sensors are off by a psi or two compared to a tire gauge, but once figured out, it’s no issue.

Craig
2/9/2024
It’s still working great!
Great product I've used these before on my motorhome just bought a 2025 travel trailer and I'm using it for those. Etrailer is amazing. Great customer service.
Good product altogether. Easy to setup and get running. Once setup it synchronized with the trailer tires within a few minutes.
My truck already has TPMS, and I'm wondering if I can get it to synch with the TPMS monitors that are already in place in the truck.

Matt C.
5/29/2020
Works well, occasionally one sensor s out temporarily.
Haven't used them in a big trip yet, but biggest complaint is not being able to adjust the brightness of display. When using suction holder to put on windshield, it's impossible to read the display if the sky behind it is bright.
Excellent product. I have a one axle trailer so knowing early when a tire is having a problem is critical. This monitor was easy to set up and has worked perfectly. I did not need to use the extension antenna...it reaches the cab of my truck no problem. Continues reading on temp and pressure. I went on a cross country trip and this product was well worth the money.

Todd
2/25/2021
Great Product , over a year and several more trips. Had one alert when tire temp went above my set parameters.
Great Product. Had trouble linking sensors to monitor but finally succeeded using Option #3. Will be taking the trailer on the road in a few days and we feel better being able to to monitor tires! Trouble linking reduces to a 4 star but close to a 5 star!
The set up is not very o
Definitely recommend TST TPMS. I recommend thoroughly reviewing the instructions to sync up the sensors. Because you can program so many different tow vehicles and trailers you can get off the screen you want...at least I found it easy to mess up.
Lauren was extremely helpful and very nice on the phone, she said I could get the TSD TPMS System by Tuesday and she was right! I got it today...etrailer has the best Customer Service, it's so nice to get this type of service in this crazy mixed up world!! Thank you etrailer
Dave & Patty H
Find a good video and watch it closely, maybe several times. Installation wasn't too bad. Love the silicone stand that comes with the unit, brilliant idea! Placed it in far left corner of windshield so it doesn't block the view but is easy to see (and hear).
I'm new to the TST TPMS, but they were pretty easy to set up ( iused th eonline instructions) and they seem to work ok.

Ray
9/8/2025
The red colored text used for changing the setting is very difficult to read as the red doesnt show up good.,
Bought this system for my travel trailer. Install was easy. I recently took it out on a short (151 miles) trip, and it performed flawlessly. The display read the sensor data continuously while traveling, and the color display was easy to read.
Excellent communication, fast shipping, and a great product.
Product seems to be good but surprised the way it was shipped. Test pictures show that the box just had a UPS label slapped on it, but the box was retail not overpacked like should once again nothing was damaged. However, such an expensive part should be overpacked and left on my porch for any kind of porch pirate that might come along to easily see what this says probably isn't a smart thing. Maybe your shipping department should see this review thanks, Tod
I used this same product on my last fifth wheel and was always happy with its performance. I wasn’t impressed with the factory installed tpms on my new Grand Design fifth wheel, so I have quickly ordered and installed the TST system. Well worth the money invested.
Had a blowout last year. Bought this for peace of mind. Worked perfectly. Total comfort knowing what was going on with my trailer tires. Install was very simple.
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John
8/7/2022
I’ve had and used this product for over a year now and am very happy with the performance. It performs exactly as advertised. I’ve had no issues. I do replace the batteries once a year so I’m not really sure how much longer they would last.