TST Tire Pressure Monitoring System

[ChrisDParise]

Originally Posted by DRM901

No. At first I thought it was because I hadn't installed the extender. However, now that it is installed I've lost a front sensor one time and the inner tire in the back another time. The inner tires seem to happen more often than any other.

I'll call them to see what they say.

Good luck. Let us know what happens we can all learn something

[tpm64]

Originally Posted by DRM901

No. At first I thought it was because I hadn't installed the extender. However, now that it is installed I've lost a front sensor one time and the inner tire in the back another time. The inner tires seem to happen more often than any other.

I'll call them to see what they say.

I had the same experience. Pretty much every trip I had at least one (but not the same one) sensor fail to read. I had the sensors that were integrated into the valve stem so I couldn't change/swap/return them. Tried the repeater in 4 different locations and finally gave up. I noticed shortly thereafter they quit selling that system.

TST was a costly mistake for me. Others seem to love them.

[RaeDawg]

We have the TST 507 and have at times had the problem with some tires not showing on the monitor. I have learned if the batteries on the tire sensors are replaced the problem is always resolved. I assume the tire sensors are very voltage sensitive and I know if they are below 3 volts it is a no go, and even just over can be marginal. Battery quality could also be an issue as I have been buying the low cost models on Amazon. Anyone know of a battery that is better for these?

[groveln]

I've told this before but again I've had a TST system for 12 years now...1st gen 510 then 507 & currently 707 with 8 flow thru sensors & have never had an issues with it. Had I two different sensor batteries die while on the road this summer & immediately replaced them keeping spares with me. Once the battery is installed the sensor is back on the grid!

[ChrisDParise]

Doesn't your owners manual recommend when batteries should be replaced? What batteries last forever?

Why wouldn't you replace them on a schedule? 9-12 months is the lifespan of the batteries on my tireminder i10 tpms. Pretty sure my owners manual makes a recommendation on replacing batteries

What am I missing?

[NXR]

Originally Posted by ChrisDParise

Doesn't your owners manual recommend when batteries should be replaced? What batteries last forever?

Why wouldn't you replace them on a schedule? 9-12 months is the lifespan of the batteries on my tireminder i10 tpms. Pretty sure my owners manual makes a recommendation on replacing batteries

What am I missing?

The manual is vague. Even if you contact TST they will give you a range because the outside temperature matters and whether the sensors are removed matters. So does the quality of the batteries the owner buys. I was told 12 to 24 months.

The TST will alert you to a low battery in a sensor but it does the same beeping as a flat. It do get your attention for sure.

The TST 507 has had at least two generations of sensors. The first ones had this spinning security cap that a lot of people just took off. It also had an oddball battery. I have the later generation and it uses a plain old CR2032. I change them every 18 months. They're reading 2.9 VDC or 3.0 VDC when removed. New batteries read 3.3 VDC.

There also are at least three displays, the TST black and white, the TST color, and the TST 770. All use the same sensors. The 770 uses a larger, brighter color display with a touchscreen for who knows why other than marketing.

As was obliquely noted, TST does not mean TST. TST is part of the company name, Truck Systems Technologies.

There have been a few different TST models and different sensors. It's probably not valid to compare the performance, battery or otherwise, of a ten year-old system with a new one. Mine is five years old.

One change made somewhere along the line was to how the sensors communicate with the display. There were interference problems from other TST systems nearby and other devices. Apparently TST made changes to improve the reliability of the sensor-display communications.

Unlicensed devices all operate in certain frequency bands, one of them being around 433 MHz. The band is called ISM, Industrial, Scientific, and Medical. There is absolutely no frequency coordination between ISM device manufacturers so interference can be common. My wireless refrigerator temp sensors run in the same 433 MHz band as my TST 507 but on a different frequency. So the TPMS is competing with the fridge temp sensors and who knows what else, especially as you're driving next to other vehicles. That can cause sensors to drop out or even falsely alarm if their design is inadequate.

The details matter. If someone just says TST they should be queried for the details of what they have if you're looking for performance or other information.

Ray

[groveln]

Originally Posted by ChrisDParise

Doesn't your owners manual recommend when batteries should be replaced? What batteries last forever?

Why wouldn't you replace them on a schedule? 9-12 months is the lifespan of the batteries on my tireminder i10 tpms. Pretty sure my owners manual makes a recommendation on replacing batteries

What am I missing?

I remove my sensors for the winter storage (6 months) time & they go to sleep. I tend to get three seasons out of them.
The TST 770 monitor is great to use being 8" & touch too.

[86scotty]

One year of daily use on my work truck's TST system with 10 flow through sensors. I have yet to replace a battery or have an issue that lasted more than a couple of minutes.

One time I have had a tire read low (<8 psi) like it was flat. Temp never went up. I started to look for a place to pull over and it righted itself before I found one. Tire was fine of course.

Fairly often I get overtemp warnings. Silence them, wait a minute and it's all back to normal. I have come to believe that this is a fault generated by other vehicles with different TPMS systems passing me. I can't prove this but I'm somewhat convinced.

TST is a fantastic system.

[NXR]

Originally Posted by NXR

There also are at least three displays, the TST black and white, the TST color, and the TST 770. All use the same sensors. The 770 uses a larger, brighter color display with a touchscreen for who knows why other than marketing.

I need to self-correct myself. The new TST 770 color display can use the same sensors as the TST 507 but only if the product date code on the sensor is 4519 or later, 45th week of 2019.

I bought my TST 507 in the 26th week of 2019 so I just saved myself $230 'cause I'm not spending $900 just to get a larger 5" color display with all new sensors.

Ray

[ChrisDParise]

On replacing batteries. I liken timely tpms sensor battery replacement to replacing battery backup smoke / co2 alarms. Or any other alarms with batteries I count on for safety or convience.

If I don't replace them on a timely basis, they always seem to wake up my chihuahuas (and then me) at 3 am. After which I have to search every floor in the house to find the offender

Tireminder has an annual battery replacement program. $5 for 10 batteries.

[robwww]

I purchased the TST 507-RV-4-C in January of 2024 so i could monitor the tire pressure on my tow car. My experience with it was terrible and would not purchase again.

Purchased the TST 507 tire pressure monitoring system for my tow car so I could monitor the tire pressure. Works great when you have a tire that has low tire pressure it alerts you. If you have a tire blowout it does not let you know you have a flat tire. We had a tire blowout on our jeep we were flat towing behind our motorhome. The TST 507 system did not let us know we had a flat tire. Not sure how long we rode on the rim. The tire was gone and the rim was wrecked. After we changed the tire, the monitor for the blown tire still read 36 pounds and 81 degrees even though the tire sensor had broken off the valve stem and was gone. About 15 minutes after we changed the tire and continued down the road did the monitor let us know we had a problem.
Called TST company. They said the sensor will not alert you if the tire has a catastrophe or a blow out or the tire pressure sensor is missing. The company said it could take up to 1 hour to register your tire is flat. They do not tell you this when you buy the system. This is why we purchased the tire pressure monitoring system. What good is it if does not let you know you have a tire blowout. I would not recommend this tire pressure monitoring system.

[ArtJoyce]

I had a tire minder system since 2013. I replaced it with a VEsafe system with 12 sensors and a repeater. It had a very good price compared to TST or Tire Minder. Heads over heels better system than my old Tire Minder. I have 7 months and about 7k miles experience with it. with the repeater I can park the toad 40 feet behind the MH and read the sensors including the rear spare on the toad.

Three things that stand out about the system are:

1) very easy to setup and use,

2) When I'm not towing the toad, the toad configuration drops off when it's out of range. The toad is added to the configuration when it gets back in range again.

3) I don't need a power cord when driving because the battery last an extreme time and the system has a power management system that put the monitor to sleep when it has no motion and wakes up with motion. I charge it at the end of each day's drive. No cord allows me to place the monitor wherever I want.

[Rexlion]

TST for a decade, and reasonably satisfied. 510 to start, then 507 color.

The internal battery on the in-cab 507 monitor died this summer. I was a bit disappointed that TST merely recommended replacing the monitor, which works fine other than having to reload tire sensor data every time the vehicle is restarted. I opened the case and the lithium ion pancake battery was bloated, so I removed it.

Then I had a brainstorm. I connected the USB cord to a 8A power bank ($10), then ran a cord from the power bank to the USB-A receptacle in the cigarette lighter where the TST monitor had been getting power previously. Back in business. It does occasionally reset the monitor for some reason when I start the vehicle, but not always; if I want to avoid that, I can pull the USB out of the lighter briefly while cranking.

TST could have sold me a replacement battery, but they don't offer one. I'm not spending for a new monitor. The heck with that.

[ChrisDParise]

Originally Posted by Rexlion

TST for a decade, and reasonably satisfied. 510 to start, then 507 color.

The internal battery on the in-cab 507 monitor died this summer. I was a bit disappointed that TST merely recommended replacing the monitor, which works fine other than having to reload tire sensor data every time the vehicle is restarted. I opened the case and the lithium ion pancake battery was bloated, so I removed it.

Then I had a brainstorm. I connected the USB cord to a 8A power bank ($10), then ran a cord from the power bank to the USB-A receptacle in the cigarette lighter where the TST monitor had been getting power previously. Back in business. It does occasionally reset the monitor for some reason when I start the vehicle, but not always; if I want to avoid that, I can pull the USB out of the lighter briefly while cranking.

TST could have sold me a replacement battery, but they don't offer one. I'm not spending for a new monitor. The heck with that.

How old was your 507? It could be it was just at the end of life for the device. Considering what happened with the battery. Losing settings implies the RAM was no longer reliable. They might have deemed it untrustworthy based on age or what happened as a result of the battery

Glad it works the way it is now. Probably not a long term solution.