For the limited cable length, I just bought a couple of the IRV2 boxes. A longer cable from the junction box would be useful, but I figured I'd live with what was provided.
I actually splice the cable and created 9 ft runs that have worked fine since installed in 2020. Still in place and work great. I don't know anything about the operational environment that Dave reported had interference but mine is fine with those runs. Something to consider at least as a test for yourself.