The TripleShot probe from Lowrance is a transom-mounted probe that provides DownScan, SideScan and 2D functions on your Lowrance Hook2 series device. For the Scan part, the frequencies used with this probe are 455/800kHz for use in freshwater, and in shallow water at sea.
The Hook2-compatible TripleShot probe comes with 6m of cable. 1-year warranty.