Unfortunately, the game hides information from us anywhere it can. Shield strength? Intangible. Interdiction modules? Guesses. Sometimes I can happily interdict from >100Ls away, then I'm 10Mms on a bandit's six, yet my interdicton module is apparently out of range, so I'm left scratching my head. At least with fuel scoops we get the benefits shoved right into our faces.
I'm not exactly sure what range my sensors have, but I do know for sure that it is a lot farther than my weapons range (another figure missing in the outfitting menu) and anything beyond that is a luxury, imo.