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Whether or not you believe properly inflated tires save fuel, more and more vehicles are coming equipped with tire pressure monitoring sensors (TPMS). Sensors mounted in either the valve or on the wheel itself measure tire pressure and alert drivers when their tires drop below a pre-set level of inflation. An Irish company (who's website is mysteriously malfunctioning as of this writing) coincidentally called Shrader Electronics has now taken TPMS to the next level.

In September, all new cars sold in the U.S. will be required to have tire pressure monitoring systems. But for all those cars built without them, owners must rely either on their trusty gauge, or one of the new valve-stem monitors. If you've been wondering how well these things work, Consumer Reports has an answer for you.

Keeping your tires inflated helps prevent rollovers, and it can improve fuel economy by 10% or more. The problem is, most people are either too lazy or too stupid to keep their tires properly filled, so technology has to step up to do our bidding for us. Tire pressure monitoring is to be standard fare on all vehicles sold in the US in 2008, but that may not be enough. The folks over at MAXAIR want to take monitoring to the next level with their patented ATMI (Automatic Tire Monitoring & Infl