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

Very good

Use these on my toad. They all worked fine with my existing TST monitor. Removed the anti theft feature to make them smaller......( I remove them when in doubt....and when the trip is over). Also I dont program them in any special way as far as position....all I want is a warning if ANY tire goes low ANYWHERE on my RV + the toad............dont care which one (I plan to stop and look things over ASAP for ANY monitor warning. I have them on rubber valve stems (fairly short ones) on my Kia Soul ...... so far (2000 miles) no problems.....knock on wood.....dont want to have to install metal valve stems.

I already have the flow through sensors on my RV trailer and needed them for my truck. They do a great job. Its just harder when you need to add air as the sensors must be taken off to add air to the tires.

I have the non-flow through sensors, recently the inside dually kept loosing pressure, it was a pain to get the sensor on and off just to put in air. eventually i had to replace the valve stem that was leaking.. i bought two flow through sensors for the inside dually tires. its a good choice,.

I had the old style cap mount and would have to remove them each time to air up the tires on the RV. These are so much easier. Accuracy is spot on also.

They did their job in the first few weeks of installing them on our tow vehicle. We tow a Nissan behind our RV that picked up a nail in the back passenger tire. We lost ten pounds and were alerted of the problem before we ended up with a blowout while towing. So I highly recommend them if you are towing a vehicle behind your RV. We have pass throughs for the RV itself and love those as well.

This is a great system, it was easy to install and program. I wish we would have bought it when we got our RV. Its not only is a sense of security knowing the the tire pressure and temperature is monitored but also before each trip we are not checking the tires the way we used to. Highly recommend the system. Also the service from the company is the best, I had a few questions on a Saturday and they were available.

Do not buy the color screen addition of this system as the tire pressure read out us in dark blue and almost impossible to see in daylight driving.

EZ using new 770 monitor. Worked flawlessly on our toad pulled behind our RV.

Shipping was fast , install easy, set up was easy with well written directions