Add LowranceA(R) ActiveImaging HD to get the highest-detail views of your underwater world. This 2-in-1 Transducer adds SideScan and DownScan capability, while allowing you the freedom to use other transducer options for your own traditional/CHIRP sonar. High-definition clarity 2-in-1: SideScan, DownScan No CHIRP Sonar Sidescan HD only FishReveal DownScan view for easy fish identification Transom installation