At Last... A Liquid Filled Tire
Gauge That Works Right!
- 2 1/2" Deluxe Gauge with protective bumper
- Holds pressure reading until released
- Glow-in-the-Dark dial face
- 17" hose with swivel angle chuck
- Specially designed vent button to equalize pressure and maintain gauge
accuracy
Liquid filled gauges have many advantages. But they can change readings by as
much as 2-3 psi if the temperature changes...
All pressure gauges - liquid filled and regular - need to be vented to the
outside to read accurately. If not vented, as the surrounding temperature
changes, they will build up pressure inside and affect the accuracy - by as much
as 2-3 psi!
But if a liquid filled gauge is vented it will leak on your hands and in your
tool box. Some manufacturers aren't aware of this and don't vent the gauge. You
then have to deal with the variation in accuracy.
Now from Longacre comes the simple answer to this problem. We have
installed a specially designed pressure equalizer button on the top of the
gauge. Before you use the gauge just push this button. Instantly any
temperature-caused pressure difference will be eliminated and you will be
guaranteed the most accurate readings possible.
If you have a liquid filled tire gauge prove it to yourself. Take your gauge
that has been in a cool place and in the typical range you use. Then take the
gauge and put it out in the sun for about 45 minutes, as would happen during a
race. Then re-check the tire that is still in the cool place. You will see that
the reading has changed. You know that the pressure in the tire is the same so
the gauge reading must now be off. How will this affect your handling to have
tire pressures high or low by several psi? What's worse is that you don't know
at what temp the gauge is actually correct! It depends on the temp in the
factory when it was manufactured. You could remove the rubber fill plug on the
gauge. But then the liquid would leak out.
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