TST 507 Tire Monitor

[CWSWine]

Originally Posted by 5picker

I was told by TST the sensor transducer measures air temperature within the transducer itself. Rubber isolation by the valve stem should have no effect.

As for the... "my sensors read a different psi than my gauge"... or... "my sensor reads a different temperature than my handheld laser" remember folks... it is just a baseline to monitor going down the road.

If you want peace of mind so that when you look at the monitor, it indicates exactly what your gauge reads, then you need to adjust your tire pressures accordingly when starting out.

For me, I could care less. As long as the pressures/temperatures stay within the pre-set range I programmed in during set-up, there isn't any reason for concern whether it indicates it started out at 65 psi or 63.4 psi.

I think the difference in temp are the best indication of a problem. The sun side tires will always be little higher than the ones on the shade side and that is not a problem. If your are seeing three tires at 100 degrees and one tire and 140 degrees it hasn't set off any alarms yet but I would be pulling over and checking tires.

[5picker]

Originally Posted by CWSWine

I think the difference in temp are the best indication of a problem. The sun side tires will always be little higher than the ones on the shade side and that is not a problem. If your are seeing three tires at 100 degrees and one tire and 140 degrees it hasn't set off any alarms yet but I would be pulling over and checking tires.

10-4. I agree wholeheartedly.

[Davidg]

Originally Posted by CWSWine

I think the difference in temp are the best indication of a problem. The sun side tires will always be little higher than the ones on the shade side and that is not a problem. If your are seeing three tires at 100 degrees and one tire and 140 degrees it hasn't set off any alarms yet but I would be pulling over and checking tires.

That's exactly right CW. I was just curious about the temp reading, but really, with the minimum setpoint so high (158 F) it's doubtful that this aspect of the monitor would be of much use. By the time the air temp inside the sensor reaches 158 F, then the tire is probably beginning to unravel. TST should allow the user to reset the temp alarm point at a lower setpoint. Even on a hot day, I have a high quality infrared temp guage as several of you also have, and I have never found my tire rubber temp over 138 F. And that's on a hot, humid day of interstate driving in south Louisiana on our fantastic roads, which must be the best in the nation.....

On the other hand, I have to admit that I don't know what the sensor temp would be on that same hot humid day if the sensor was on the sunny side.

[5picker]

Originally Posted by Davidg

That's exactly right CW. I was just curious about the temp reading, but really, with the minimum setpoint so high (158 F) it's doubtful that this aspect of the monitor would be of much use. By the time the air temp inside the sensor reaches 158 F, then the tire is probably beginning to unravel. TST should allow the user to reset the temp alarm point at a lower setpoint. Even on a hot day, I have a high quality infrared temp guage as several of you also have, and I have never found my tire rubber temp over 138 F. And that's on a hot, humid day of interstate driving in south Louisiana on our fantastic roads, which must be the best in the nation.....

On the other hand, I have to admit that I don't know what the sensor temp would be on that same hot humid day if the sensor was on the sunny side.

I will need to go out and recheck the manual (it is in tow vehicle) tomorrow but I'm almost 100% sure 158 degrees is simply the default setting and that it can be changed.

[OldBob]

Originally Posted by 5picker

I will need to go out and recheck the manual (it is in tow vehicle) tomorrow but I'm almost 100% sure 158 degrees is simply the default setting and that it can be changed.

Yes...that 158 degrees can be reset to another temperature. 158 degrees is the Michelin recommended setting because above that temp tires are entering the danger zone. TST recommends that this setting not be changed. When we first got our 507 system I lowered mine to 135. I raised it back to 158 after driving through the desert. Outside air temp was 117, road temp must have been astronomical and the side of the trailer that had the sun beating on it caused the alarm to go off several times on the Interstate. That overheat alarm is LOUD!

[Davidg]

Originally Posted by OldBob

Yes...that 158 degrees can be reset to another temperature. 158 degrees is the Michelin recommended setting because above that temp tires are entering the danger zone. TST recommends that this setting not be changed. When we first got our 507 system I lowered mine to 135. I raised it back to 158 after driving through the desert. Outside air temp was 117, road temp must have been astronomical and the side of the trailer that had the sun beating on it caused the alarm to go off several times on the Interstate. That overheat alarm is LOUD!

Well, I hope you are correct, however, when I tried to set it below 158 the reading rolled over to the highest setting of two hundred something, and then started back lower again. In other words, while pressing the - button, the reading would bottom out at 158, then the next number that appeared was over 200, then began scrolling down again. Maybe I've missed something in the setup. I just would like to set it at 145, but for now, everything seems to be working as it should.

[CWSWine]

Originally Posted by Davidg

Well, I hope you are correct, however, when I tried to set it below 158 the reading rolled over to the highest setting of two hundred something, and then started back lower again. In other words, while pressing the - button, the reading would bottom out at 158, then the next number that appeared was over 200, then began scrolling down again. Maybe I've missed something in the setup. I just would like to set it at 145, but for now, everything seems to be working as it should.

When I set mine up it was set for 167 as a default value and mine did the same thing yours is doing when I tried to set it lower.

[Witch Doctor]

Originally Posted by CWSWine

When I set mine up it was set for 167 as a default value and mine did the same thing yours is doing when I tried to set it lower.

Not quite sure what is going on with your monitor or the set up sets, but 158 is the default setting out of the box and TST recommends that setting, they say that at that degree is where most blowouts can occur. If you have your sensors coded already, all you really need to do is call TST and have the monitor in your hand. The Secretary who is very good or ask for Mike and they can tell you how to reset the low end temp. They will walk you through of which buttons have to be pushed to change it. It took me like 5 mins to get things set correct on mine after I had to call them. Also my system is 2 years old, I don't know if they made a change but I really doubt it. Might be worth a call and find out, but it doesn't sound right. It also list the default settings in the manual. At least in mine....Good luck..

[BandJCarm]

Pardon a 'dumb' question.........but need a set of these and trying to understand.

So........whatever the setting is..........158, 167, lower, whatever.......is the temperature at which the alarm goes off, correct??? Meaning, that's the upper limit of temp before alarms sound?

Is there a chart or info on various tires, sizes, brands, etc.......at which they recommend that setting to be? I read above Michelin says 158........but that would vary, right??

[CWSWine]

Originally Posted by BandJCarm

Pardon a 'dumb' question.........but need a set of these and trying to understand.

So........whatever the setting is..........158, 167, lower, whatever.......is the temperature at which the alarm goes off, correct??? Meaning, that's the upper limit of temp before alarms sound?

Is there a chart or info on various tires, sizes, brands, etc.......at which they recommend that setting to be? I read above Michelin says 158........but that would vary, right??

I'm not sure of brands but if the danger point for Michelin is 158 wouldn't you want the alarm go off a few degrees before it reaches that temp. I bet the Michelin tires are rated a lot higher than 158 degrees - just makes sense to me at least.

As far as my default set temp I didn't get any paper work in my box so it could be a returned unit - I got mine from Amazon. On that note did anyone get a warranty card to send in - there wasn't one in my box.

[CWSWine]

Ok found it on TST webpage.

Default 158 (mine was probably a return because it was set to 167 and no paper work)

Michelin over temp range is 180 to 200 degrees.

Watch the video.

507 Starter System Kit - Starter Systems, Tire Pressure Monitoring Systems - Truck System Technologies

[5picker]

Originally Posted by CWSWine

I'm not sure of brands but if the danger point for Michelin is 158 wouldn't you want the alarm go off a few degrees before it reaches that temp. I bet the Michelin tires are rated a lot higher than 158 degrees - just makes sense to me at least.

As far as my default set temp I didn't get any paper work in my box so it could be a returned unit - I got mine from Amazon. On that note did anyone get a warranty card to send in - there wasn't one in my box.

I think 158º is the "danger' point not the 'destruction' point.
That recommendation temperature alarm should get you safely off the road.

I received a manual and a warranty card.
Call them... they are great folks.

[Flybob]

Originally Posted by CWSWine

As far as my default set temp I didn't get any paper work in my box so it could be a returned unit - I got mine from Amazon. .

Here is link to manual
http://tsttruck.com/wp-content/uploa...ser-manual.pdf

[CWSWine]

Originally Posted by Flybob

Here is link to manual
http://tsttruck.com/wp-content/uploa...ser-manual.pdf

Yep, that is what mine didn't come with and glad now it didn't. I went to YouTube and watch a couple great videos on how to set it up, lot easier that trying to use the manual.

Now I will have to call Monday about the warranty card since I want to be notified about the upgrade version with the new color version with some current issue were addressed.

[Davidg]

Originally Posted by CWSWine

I'm not sure of brands but if the danger point for Michelin is 158 wouldn't you want the alarm go off a few degrees before it reaches that temp. I bet the Michelin tires are rated a lot higher than 158 degrees - just makes sense to me at least.

As far as my default set temp I didn't get any paper work in my box so it could be a returned unit - I got mine from Amazon. On that note did anyone get a warranty card to send in - there wasn't one in my box.

I agree 100% with your first sentence. I want the option of setting my temp alarm at 145 F. Mine came fully wrapped and boxed with two sets of instructions along with the manual, warranty card, and registration card. I ordered directly from TechnoRV, which interestingly, was less expensive than Amazon.

[OldBob]

Originally Posted by 5picker

I think 158º is the "danger' point not the 'destruction' point.
That recommendation temperature alarm should get you safely off the road.

I received a manual and a warranty card.
Call them... they are great folks.

I agree they are GREAT folks. We called them at 10:30pm one night as we were having trouble trying to understand how to change a setting. We were kindly guided step by step until it was set. A few years ago we paid $250 for the 507. Considering the cost of our rig, that's pretty cheap "insurance" and peace of mind.

[spock123]

I had to put new batteries in the sensors and I thought I would have to to reprogram the sensors but they came right back at where I had them set. I know it's line of sight which is different than being hooked up to the camper but it's eighty feet away and the sensors on the camper came right on


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[ADOR]

Folks, a lot of good information here. However, I am not sure what really to get for my Class C (2015 Forest River, Forester 2861DS). We just purchased our first Class C a month ago. Now have 2,100 miles. When I tried to add air to 80psi, I noticed all tires have rubber stems. I really had a tough time adding air to the inside tires of the dually.


So, here is what I would like to do. I would like to have the rubber valves replaced with metal stems that have extension, so I can reach the inside tire easily. I also want to get a set of TST TPMS system, but not sure what will work for my Class C. If I can please be directed to the right path so I only "Buy Once, Cry Once".


1. What is the forum members recommendation for Metal Valve replacement (with extended valves for the rear tires)? What brand or manufacturer?


2. Will TST 507 with Flow Thru valves clear the wheel cover of the front and rear tires (Those wheel covers with fake lug nuts. Will these go inside/behind those covers?). Or is the TST 510 better for the Class C with wheel covers?


3. We purchased the RV at Camping World. Should I have them replace the valve stems at the service center? Or go to Discount Tires (where they specialize in wheels and tires)?


We are getting ready for a 3 week road trip this June. Just want to have peace of mind for my family's safety. Thanks in advance for your inputs.

[CWSWine]

ADOR
I would call TST and ask them about the internal sensors since they are probably going to pull the tires to replace the stems.

[ADOR]

Thank you. I didn't realize they have an internal TPMS as well. I just went to their website and found Model TST 507 INTERNAL. Battery is good for 5-7 years. Will have to send them back for battery replacement and refurbishment. I think I should be OK with that, as long as it last at least 5 Years. I will give them a call Monday.

Originally Posted by CWSWine

I would call TST and ask them about the internal sensors since they are probably going to pull the tires to replace the stems.