Reduce Fuel Consumption: low tire pressure will cause rapid wear of shoulder and sidewall of tire, and shorten tire life. It also increases rolling resistance, which in turn increases fuel consumption. If there is real-time monitoring of tire pressure, the above situation can be avoided. EASY INSTALLATION:What you do is to remove old or broken TPMS and replace it directly. It is well designed to be simply placed on both Front and Rear wheels, Left and Right sides. The mainly function is to monitor tire internal pressure and allow you know the tire condition. High level of accuracy and sensitivity, enhance of your vehicle. High quality material ensures stable performance and durability. Product: Car TPMS Sensor For 3 3X 2 5/7 for EC7 / GS / GC9 J523114013 TPMS Tire Pressure Sensor Fitment: Condition: 100% New and High Quality! Part NO:J523114013 J52-3114013 Colour:Black + Silver Material:Metal + plastic Package Contents: 1 x Tire pressure sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.