A better choice might be a remote TPMS.. if, as I and one two others I know of, get a flat on the towed the TPMS may well alert you BEFORE it totals the tire.. It did me and I added air, and added air, and added air, and added air and finally got to the tire store where they told me I'd been screwed, removed the screw. put in a patch and it held air after that.
As for the other two... Well one decided to install it later.. Totaled the tire, the Rim the brake rotor and over 2,000 in secondary damage to the fender.
The other did not have such a system totaled the tire.. I think the Rim was ok As was the rest of his towed... he (however) can afford to replace the tire (He's driving a Prevost Motorhome those start at what.. half a million?)
Nice musician however. One very funny song (Tommy Brandt: The Septic Tank Man)
Today I don't have a motorhome any more so my JEEP is not a towable model (Well on a trailer) TPMS (Factory) alerted me to a low tire so i added air, like 3 or 4 times and finally got to Belle Tire (Same as the first story but different store) I'd not been screwed this time.. I'd been bolted (Lag bolt..OK that's a big, BIG screw) Same ending hoever.> Total cost $0.00 and out the door.