1- I’ve looked for systems with just two, they are hard to come by.
2- I went the exact opposite way but I bought a cheap used Android device that functions as my rear view camera display, TPMS running in the background with alerts when there is an issue, has my digital leveler app, and also a scan tool app for my truck. No cell service, just WiFi and Bluetooth.
3- I didn’t rebalance the wheels.
4- Mine came with a repeater. The 4 sensors (3326) have short range and then the repeater transmits strong to the truck.
5- Batteries are replaceable, not sure how long they last.
6- Yes you program temperature and pressure parameters.
7- Temperature seems like a good idea, kinda surprised cars and trucks don’t monitor temperature. On the trailer seems like an easy way to detect a wheel bearing or brake issue.
8- You get what you pay for. If I were to have an additional display I think the solar ones are kinda neat. But the $25 setups seem to not work so well.
Here’s the one I bought... It works pretty well, but again you don’t want to go through the phone.
Lippert Components - 2020106863...
https://www.amazon.com/dp/B08CFJVZJH...p_mob_ap_share