The Lowrance Transducer Adapter Cable with Uniplug adapts old Lowrance transducers with Uniplug connector and power supply (HST-WSBL, PDRT, and PDT transducers) to the Lowrance Hook2 4x and Lowrance Hook2 4x GPS Fishfinders.
IMPORTANT: Transducers can support frequencies and functions that are not compatible with a HOOK2 screen. You will only get the probe frequencies and features that are included in your specific HOOK2 screen. For example, adding a 7-pin HDI transducer to a HOOK2 4x will not give the unit DownScan capabilities or the 83kHz frequency. Also, adding a TotalScan transducer to a SplitShot unit will not give the unit StructureScan functions. Airmar transducers are not compatible with HOOK2 screens, since HOOK2 units do not identify the transducer ID or the ability to select an unsupported transducer in the probe configuration menu.