Remote temp sensor

Has anyone tried one of the remote tire temp / pressure sensors?   I heard of one, supposedly available through Discount Tire called "Smartire."  There may be other brands.

The idea is a tire failure usually follows either a temperature rise or a pressure loss.  These things are supposed to keep a display updated in your car, and have setpoint limits you can adjust to trigger warnings.

I've never met anyone who has used one.

Jon

Try
http://www.advantagepressurepro.com/

PressurePro - AVAILABLE Fall 2001
PressurePro Development -- PressurePro has put together a World Class development team to bring this new product to market.  Our engineering team includes a specialist in each of the engineering fields needed for this product to ensure it is the leading product on the market today.  Leading the development is one of the individuals instrumental in development of GM's On-Star System.  Advantage is partnering with the best and brightest to ensure PressurePro's leading edge technology provides a system that is reliable, durable, accurate, easy to install, simple to use and cost effective.  

Presently there is a lot of controversy about the remote sensors. Some use the ABS system or wheel speed monitoring. An under inflated tire rolls slower(or faster) than a correctly inflated one and this info is read and passed to a monitor the driver can see. The Dept Of Transportation has issued some test results and some of them don't work as advertised.
As I almost never go more than a hundred miles without stopping I went with a different type. They are visible sensors that replace the valve stem cap. They come in various pressure settings. I got four 35 pound monitors for the tow vehicle and two 50 pound monitors for the TM. If the pressure remains within the set tolerances, you see green on the monitors, if it is down a little, you see Yellow and if it is dangerously low, you see red. A quick walk around the rig gives you all your tire info.
My theory is that most leakage is slow, so a visual monitor will suffice. A sudden loss of pressure, such as a blowout, will make itself known without a sensor in the drivers compartment.
Dave

Where did you find your "indicators"?  Were they expensive?

The only pressure monitoring device I was aware of, were the ones that clamp inside the wheel (when changing tires) and transmit a pressure signal while rolling.  They auto-shutoff when stopped for more than a few minutes.  Battery life of sensors is about 3 years, but the system is three or four hundred bucks!

Too rich for my blood.

But I wouldn't mind a little extra "low tech" insurance...