Lowrance ActiveImaging HD 2-in-1 Transducer - Step up to the ultimate fishfinding clarity with new, high-definition Active Imaging HD 2-in-1 sonar. Get the clearest images of fish and structure from high-frequency (up to 1.2 MHz) SideScan and DownScan Imaging. High frequency (up to 1.2 MHz) SideScan and DownScan Imaging deliver the clearest images of fish and structure Supports 455/700/1000/1200 KHz frequencies Perfect complement for factory-installed CHIRP transducer Smart transducer design boosts signal clarity Compatible directly with Lowrance HDS PRO or with a S3100 module with HDS LIVE, HDS Carbon en Elite FS