Characteristics:
Material: Chrome plated brass
Screen Psi: 28psi, 30psi, 32psi, 34psi, 36psi, 38psi
Fits into existing rubber valve column of any standard size
Warns you visually when tire pressure is low to help avoid premature tire wear or slightly inflated tires
Indication:
Green indicates that the tire pressure is normal.
Yellow indicates that the pressure has dropped by about 5 pounds.
Red warns you that the pressure has dropped by at least 10 pounds.
Installation:
Determine the right tire pressure for your tires.
Inflate the tire to correct the pressure.
Install this new pressure cap firmly.
Just look at the color to know if your tire is low or normal