MobileCollect Cable for Fowler - Sylvac Gages Uses Fowler / Sylvac's Proximity Interface The Proximity Interface is used by several gage manufacturers including Fowler, Sylvac & Starrett. This MobileCollect Gage Connecting Cable ONLY works with the MobileCollect V2 Transmitter. To complete your wireless system, you would need the following MobileCollect items... MobileCollect RS-232 Transmitter # MC-MM-V2 MobileCollect Receiver / Base