Set of 4 Car Tire Pressure Monitors

Tire Pressure Alarm Monitor is an auxiliary tool for measuring tire pressure, locking Tire Pressure Alarm Monitor on top of the tire air nozzle, look directly at the color change in the transparent cover to judge the adequacy of the tire pressure, eliminating cumbersome of  detecting by instruments. If a 15% reduction in tire pressure will cause your car to increase 6% of fuel consumption and twice tire wear , thereby increasing the risk by 30%. The Tire Pressure Alarm Monitor will remind you to pay attention to this.
Simply replace all your tire caps with Tire Pressure Alarm Monitors Today!

Highlights:

• Green shows that tire pressure is normal;
• Yellow shows that the pressure is lower about 10 percent than the standard;
• Red alerts you that the pressure is lower about 25 percent than the standard.