TST 507 flow thru here. I just went by what I read on the MOC. I got the set with 6 sensors. Thought I would use two as spares but after a year or more haven't needed a spare so I will be putting the other two on my spare tires or the rear tires of my TV, can't decide which.
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Previous: 2008 Montana 3400RL & 2014 3725RL
Current: Full Time 2022 SOB TT Toy Hauler
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