iefpro1,
Pressure Pro seems to be the monitor of choice. They screw onto the valve stem and constantly monitor tire pressure. Other monitors require the sensor to be mounted inside the tire. Some display temperature, but most information that I have received said that temperature is not as important as pressure.
Just remember, as in my case with a major "tire separation", none of the monitors will react quick enough for advanced warning before the explosion. All the monitors should provide enough warning for slow air loss.
Good tires, proper inflation, tire care, and a little luck is the best.
Forrest