I've installed SeeLevel sensor strips and displays on seven RV's so far, including two of my own. I've been very satisfied with the performance and the more accurate percentage readings. If the tanks are reasonably accessible, sensor installation is quite easy using the existing wiring. The display installation depends on what you currently have and how much you want to modify it. Most of my installs have been to replace the common KIB systems used by many RV manufacturers, and I was able to gut the existing displays to use them as a base for the smaller SeeLevel display.