They are well documented in many threads here on JOF. I have the TST (Truck system technologies) version. It has one monitor and can monitor 22 tires.
I have all tires on my truck and 5th wheel on it. You may need the optional repeater for adding the boat tires due to the distance but many use it successfully.
There are others that are also well suited to monitoring and I'm sure you will hear from them.
click on the link in my sig to Jayco owners forum custom google search and enter TPMS and it will give you many threads on the subject on JOF.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
2017 GMC Terrain (future TOAD)
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