I have Neptune Apex running on my tank. About 50 feet away I have a RO/DI system making water. Would love to connect either an optical sensor or Level indicator to my fresh water container (100 gallons). One idea was to purchase a another FMM module and run a long 100 foot 1Link cable. That seems like an expensive option as I would have to purchase another FMM module. Has any one tried to extend the optical sensor cable or Level indicator cable. Or have another ideal.