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28. Can I use tire valve extensions?
Answer: It is common to use extensions, and most tire valve
extenders work fine, if you have problems with sensors mounted on
extenders, test the sensor on a valve stem without an extension to
see if it is a sensor problem or an extension problem. Loose extender
connections can sometimes cause alarms. Using extension supports
with both braided and straight extensions is critical.
29. How accurate is the system?
Answer: Our sensors are very accurate, and any gauge readings
should be made after resetting the sensors. Measurements of 1 psi
need a controlled laboratory type system to be accurate. The tire
pressure is accurate within +/- 1.5%. Temperature is accurate to
within +/- 5-degree F. The pressures and temperatures can vary
dramatically from wheel to wheel depending on many factors, such as
sun shining on one side, vehicle load, castor/
camber/alignment/brake temps. Even race cars turning left all the
time generate higher pressures and temps on one side. Tire gauge
accuracy can vary wildly, and their quality is not dependent on their
cost. Temperature compensation is a requirement in a good gauge.
(Gauges that read the same at -40 & 110 degrees) slide type gauges
that rely on friction are often inaccurate.
30. How much air do I put in my tires?
Answer: Always set the monitor pressure to the same as the cold
inflation pressure. As an example, some people set the parameters at
100 psi and then put 105 psi in the tire for good luck, by doing this the
chance of over pressure alarms is increased.
31. I get an alarm when I have been stopped for a while?
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