XM 9 HW MSI T MEGA Side Imaging+(TM) Transom Mount TransducerMEGA Side Imaging+ Transom Mount Transducer supports MEGA Imaging+/800kHz/455kHz and Dual Spectrum CHIRP 2D Sonar with a CHIRP range of 150-220kHz. Includes built-in temperature sensor, all metal bracket and 20' cable. Features:This accessory is compatible with the following Humminbird products: HELIX 8 CHIRP MEGA SI+ GPS G3N, HELIX 9 CHIRP MEGA SI+ GPS G3N, HELIX 10 CHIRP MEGA SI+ GPS G3N, HELIX 12 CHIRP MEGA SI+ GPS G3NDual Spectrum CHIRP Frequencies: Full: 150-220 kHz, Narrow: 180-240 kHz, Wide: 140-200 kHzDual Spectrum CHIRP Max Depth: 1200ft (365m)MEGA Side Imaging+ Frequencies - Max Range (side-to-side): 455kHz: 440-500 kHz - 800ft (244m), 800kHz: 790-850 kHz - 250ft (76m), MEGA SI+: 1075-1150 kHz - 400ft (122m)MEGA Down Imaging+ Frequencies - Max Depth: 455kHz: 440-500 kHz - 400ft (122m), 800kHz: 790-850 kHz - 125ft (38m), MEGA DI+: 1075-1150 kHz - 200ft (61m)1-Year Limited WarrantyWARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.