Liquid filled tire gauges have many advantages but they can change readings by as much as 2-3 psi if the temperature changes.
Now from Longacre comes the simple answer to this problem. They have installed a specially designed pressure equalizer valve on the top of the gauge. Before you use the gauge just loosen the knob on top of the gauge 1/4 turn, then hand retighten. Instantly any temperature-caused pressure difference will be eliminated and you will be guaranteed the most accurate readings possible.
Liquid Filled Tire Pressure Gauge - includes both angle and ball chucks.
- 2 1/2" Deluxe Gauge with protective bumper
 - 1/2 lb increments with 2% accuracy (1/4 lb increments on 0-15)
 - Air pressure release button
 - Dual bleed button on 0-15 for faster settings at low pressures
 - 17" hose with swivel angle chuck installed with alternate ball chuck included
 - HOLDS PRESSURE READING UNTIL RELEASED
 - Glow-in-the-Dark dial face
 - Specially designed vent valve to equalize pressure and maintain gauge accuracy
 - 0-60 PSI by 1/2 lb
 
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LONGACRE TIRE PRESSURE GAUGE ANALOG 2.5"
accurate and easy to read
 
- Availability:
 - STG Part Number:
 - L|2507-52-52002|0
 - Manufacturer's Part Number:
 - 1