Raymarine CPT-S Thru-Hull - High Chirp - Plastic - 0 [E70339]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 Sonar Max Depth: 900' CPT S 0 plastic is perfect for a sailboat application MFD must have version 16 software or later Specifications: Speed Included: No Mounting Style: Thru Hull Imagining: Standard Chirp: High Box