The TST 507 is the best Tire Pressure Monitoring System (TPMS) on the market. The kit comes with sensors and a monitor which provides real-time tire pressure and temperature. It alarms you in the event of low pressure, high pressure, rapid pressure loss, slow leaks, and high tire temperatures. The cap sensor is very popular because it can be used on any valve stem. If you add flow-thru sensors to your kit, they must be placed on metal valve stems.

* Color Monitor * 4 Cap Sensors * USB/DC Power Supply * Signal Repeater * Rubber Dash Pad Mount * Suction Cup Window Mount * Locking Hex Nut and Tool * Replacement O-Ring Kit * Exclusive TechnoRV Learning Series

* Reports pressure and temperature on color monitor * Monitor can report up to 4 trailers/towables * Customize each axle for high and low alert parameters * Features a user-replaceable battery (CR2032) * The sensors will auto-code to the monitor * Has a locking hex nut theft-resistant feature * Monitor auto-scrolls through each tire reporting PSI and temperature * GE Circuitry and well-insulated sensors * Comes with a 3-year warranty