The TST 507 is the best Tire Pressure Monitoring System (TPMS) on the market, and the only one that includes a color monitor. The cap sensor is very popular for those that are looking for a low-profile sensor. The Cap Sensor can be used with metal or rubber valve stems.
*This System Comes with 6 CAP Sensors
I am extremely happy with this product with one exception. That is that every time you turn it on, it takes up to 4-5 minutes to communicate with all 5 sensors on my vehicle. One must have patience.