What's in the box:

1 X Automatically Elaborate Simple 4PCS Tire Pressure Detecting Cap Monitoring Visual Warning Device Auxiliary Tool (1), 1

This product is an auxiliary tool to measure the tire pressure, the user should fix the tire pressure cap in the tire gas mouth, directly watch the color change in the view window to adjust whether the tire tire pressure is sufficient.

Features:
Brand new and fine quality.
Significantly extend tire life, prevent tire the lack of pressure to avoid puncture accident.
Automatically measure and display tire pressure, preventing the air valve core and tire leakage to cause the fuel consumption increasing.
The tire pressure cap can be used just in time, many automobile factories to inflate the tires in accordance with the 2.5bar standard.
Three-color warning, display different colors according to the different range of tire pressure.

Specifications:
Type: copper core, plastic core(optional)
Package Size: 100 * 100 * 20mm / 3.94 * 3.94 * 0.79in
Package Weight: 40g / 1.41ounce

Package List:
1 * Tire Pressure Monitoring