SI-TEX SCS-1000 CHIRP Echo Sounder Module [SCS-1000]SCS 1000 CHIRP Echo Sounder Module Turns your chartplotter into a CHIRP Echo Sounder The SI TEX CHIRP Echo Sounder is designed to be easily connected and combined with SI TEX NavPro multifunction chartplotters* to turn it into an Echo Sounder. Transducer compatibility CHIRP Echo Sounder is compatible with both AIRMAR CHIRP and CW transducers, and with Radarsonics CW transducers. It can be coupled with various types of transducers: plastic stern thru