CPT-S Thru-Hull - High Chirp - Plastic - 0°Connects to the CP100 and/or MFD Series that ends in axx8 or esxx8. CPT-S transducers are strictly high chirp sonar transducers and do not include the downvision element.Features:High Chirp SonarMax Depth: 900'CPT-S 0° plastic is perfect for a sailboat applicationMFD must have version 16 software or later