The Raymarine CP470 is a high-performance dual-band CHIRP network sounder that can handle either one dual-band Low/Medium or Low/High transducer, or two single-band transducers.
The Raymarine CP570 is a very high-performance dual-band CHIRP network sounder that can handle either one high-power dual-band Low/Medium or Low/High transducer, or two single-band transducers.