TPMS

I use the flow-through sensors on the 507. Since I use them on the truck and trailer, I really don't feel like the standard sensors would work for me as I would have to dismount the rear duallies on the truck to add air to the inside tires. I haven't lost any sensors due to road hazards in 2-1/2 years of use.

I also use the repeater due to the length of our 5th wheel and the placement of the monitor/receiver in the cab of the truck.

Rusty