Tire pressure monitoring system

[Philip54]

I am replacing the tires on my 996 and I am considering a tire pressure monitoring system that displays the tire pressure on my iphone 4S.

Any recommendations about a system that is both reliable and accurate?

Thanks

[mdragon]

what have you found so far and how does it work?

[Philip54]

I have seen a few systems on Amazon.com and they are kind of expensive, in part because they include devices for processing and displaying the signals from the sensors. I was thinking that a system that displays the pressure information on the iphone would be cheaper, if it exists.

[martadon]

Here's one solution:  http://www.atbs.com.tw/product_TPMS_Module_E.htm  no matter what system you get you have to have transmitters and the receiver.  The iPhone App is free.

Edited May 3, 2015 by martadon

[JFP in PA]

I find it interesting that someone wants to add a TPMS system to a car without one, as most inquiries we get at the shop about TPMS systems are about how to turn one off on cars that came with them.  Just an observation...........

[Richard Hamilton]

I really don't see how those sensors can measure the tyre temperatures accurately, when they are mounted on the (rubber) valve stem.  I also don't like that type, because you must be holding the Schraeder valve open permanently to read the pressure.  Clip a kerb with the sensor, and you could have a quick tyre deflation.  An internal sensor has to be the way to go.  Just my $0.02 worth.

 

JFP - I'll bet they are mainly 2006-7 cars, and the batteries have gone flat.

[JFP in PA]

JFP - I'll bet they are mainly 2006-7 cars, and the batteries have gone flat.

 

Actually, just about every year since they became mandatory here in 2007.  They are expensive, not particularly accurate (although better than nothing), and more expensive to have to replace every 4-6 years.  Yes, they can be turned off, and no, most (if not all) shops won't do it as they are a Federally mandated safety system (so the car can fail annual inspection if it is turned off), and the shop can be held financially liable if the car gets into an accident.  Simply ain't worth it.............

[Philip54]

I find it interesting that someone wants to add a TPMS system to a car without one, as most inquiries we get at the shop about TPMS systems are about how to turn one off on cars that came with them.  Just an observation...........

The main reason I would be interested in adding a TPMS to my car is early detection of slow leak flats, before the tire gets damaged. Wouldn't a TMPS serve that purpose?

Thanks

[Philip54]

Here's one solution:  http://www.atbs.com.tw/product_TPMS_Module_E.htm  no matter what system you get you have to have transmitters and the receiver.  The iPhone App is free.

Thanks

[JFP in PA]

 

I find it interesting that someone wants to add a TPMS system to a car without one, as most inquiries we get at the shop about TPMS systems are about how to turn one off on cars that came with them.  Just an observation...........

The main reason I would be interested in adding a TPMS to my car is early detection of slow leak flats, before the tire gets damaged. Wouldn't a TMPS serve that purpose?

Thanks

 

 

It would, but then so would a $5 tire pressure gauge and checking the tires from time to time.