Dill Air Controls Chrome Pocket Air Gauge, Sold Each (Store Use)

Features and Benefits:

• 5600-CH Chrome Pockt Air Gauge
• 10-75 psi
• Chrome finish
• Includes clip
• Sold individually

A pencil gauge is simply a cylindrical chamber with anairtight piston inside. The measurement indicator side is always open toatmosphere pressure. The end that you connect to the tire (input side) becomesa closed chamber once it is connected to a tire. It no longer sees atmosphericpressure.