I purchased a new TST tire pressure monitoring system to keep a close eye on my six year old tires. Make sure you have clearance or room to fit these somewhat longer sensors on your wheels. My front hubcaps interfered with the pass thru sensors so I bought the cap sensors for the front and these pass-thru sensors for the back four tires. My complete system is now 6 cap sensors (four on tow vehicle, two on RV) and four pass-thru sensors (all on rear of RV). I highly recommend protecting your RV investment with this easy to use safety accessory.
Reviewed by: (Verified Buyer) David Brown from Tacoma WA on 3/24/2020