Forum Discussion
Dayle1
Jul 11, 2013Explorer II
TST 507 with six sensors. Replaceable battery external sensors on the truck rear tires and flow thru internal sensors on the trailer tires. System works great and I may switch to four internal sensors on the truck next time it needs tires. Had an older TST system that did warn of a failed ST tire and avoided major damage. Unfortunately I had the sensors stored inside my garage when we had a house fire in 2011. Like the 507 system even better.
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