Messed around with the motion sensor:
Problem here is, that "somebody" would have to add the tex still and second is, that the poly/edge-count is still too high at the splines i think. Couldn't reduce them more or at least i don't know how this could be done. Those splines were "sweeped" so that a 3D outline was added to the shape. Maybe somebody knows how to still reduce them more. Otherwise those cables have to be done again from the scratch i guess.
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you have captured it pretty good! but take a look at Geiger counter I've modeled recently, maybe its not perfect, but still shows pretty much how to capture shape with a relatively small polycount.
and, while modeling, you should plan how you would unwrap it and texture it with pretty lowres texture, so you should keep symmetry where its possible to get more texture space for details
good luck!
PS here's a hint how to do wires quickly - do it with splines, then go to "Rendering" rollout of editable spline properties, and check some parameters as shown on the pic below
also keep in mint that interpolation steps also sould be kept as low as possible (I always set it down to zero)