Aftermarket TPMS ????

I purchased a unit with external valve stem sensors and a display module that mounts in a cigarette lighter socket.  I didn't want the added complication of internal sensors, rebalancing the tires, having to remove a tire to change a battery, etc.  I bought it with the intention of using it on the Pantera, but just to try it out, I put it on my Subaru.  It worked well, so I bought another for the Pantera.  My only minor complaints are no dimming ability for the display at night, and the "manual" is a tiny sheet of paper written in Chinglish.   I am satisfied with the performance; works as advertised. 

https://www.ebay.com/itm/Car-T...p2057872.m2749.l2649

I had heard the risk of a cap mounted system was that it has to keep the valve stem depressed all the time to monitor the pressure and thus perhaps more prone to leaking or theft. Sensors that integrate with an app that sends an alert would be nice.

Larry, is this the sort of thing you’re looking for: 

http://www.orange-electronic.c...duct_p409t+.html#top

Stack used to make a good system but not sure if they still do. If I recall it was quite expensive. 

David,

that unit offers the internal sensors but it uses the Bluetooth link to their own proprietary display unit.

The units I am considering display information to a smart device such as a mobile phone.

Larry

Orange has that too. If you search around their web site, you’ll see it.