Ime range extenders are wireless. Even worse, most need to be setup as there own network, separate from the main house network. For example, my main house network is used by the extender in my back porch. When im 1 acre away at my pool, i see the extenders network name and connect to that. I cant see the main house network. So it increases the complexity of the network. Thats ok for browsing, but for tank monitoring i would go wired, or powerline wired which is the same thing.