TST 507 Tire Pressure Monitoring System, 2 Flow Thru Sensors for Metal Valve Stems by Truck System Technologies, TPMS for Caravans, Motorhomes and campervans

had a different brand for years. This one out does it by a land fall. not at all sorry went to theTST

Purchased to replace lost sensor. These newer sensors appear to be improved somewhat and work with the 507 receiving unit which is now 5 years old. Would easily recommend.

Added to current system with six sensors Love security of monitoring all tires on RV and tow vehicle

Tow Vehicle

Replaced my older style flow thru sensors on my 26 ft travel trailer. Programmed all four sensors without any issues and installed each one at a time. However on my first trip the two sensors on the left side didnt provide any readout on the display inside my pickup truck on a one hour trip. The two sensors on the right side were OK, as well as the four button caps on my truck. Not sure why just the left side wheels on the trailer are displaying information.

Much larger than I expected. Easy to install and they feel secure.

This is the upgrade design. No tools to swap out the batteries. Still seems to be plenty strong

Same price as everywhere else. Work great. New design.

Worked great. Integrated well with my monitor

Mounted on tow car behind motorhome. Works as described