This system works exactly the same as the 510RV but it has USER REPLACEABLE BATTERIES in the sensors! The batteries are widely available at any store that carries a selection of batteries and they will cost between $2.00 or $3.00. 

This system will report PSI and tire temperature in real time, while continuing to offer the user the ability to custom program high and low alarm setting in 4 different zones. 

The 507RV system, as with our 510RV system, is accurate within 1.5 +/- PSI and our systems are accurate within +/- 1 degree Fahrenheit of the actual air temperature within your tires. 

Our 507RV system also arrives with a nice dashboard mounting bracket AND a suction cup bracket for easy windshield mounting. 

We have re-designed the monitor for our 507RV system to offer a more ergonomically friendly design, while continuing to offer the same data that has driven TST to the top of the TPMS industry, backed and supported by the same personal service standards that have made TST the only name you ever need to know in the world of tire safety and pressure monitoring.

This system comes with a 2 year warranty and free shipping.