This accessory is compatible with the following Humminbird products: HELIX 8 G3N Series MEGA DI and MEGA SI+, HELIX 9 G3N Series MEGA DI and MEGA SI+, HELIX 10 G3N Series MEGA DI and MEGA SI+, HELIX 12 G3N Series MEGA DI and MEGA SI+.
Down Imaging Frequencies - Max Depth: 455kHz: 440-500 kHz - 400ft (122m), 800kHz: 790-850 kHz - 125ft (38m), MEGA DI+: 1075-1150 kHz - 200ft (61m)
MEGA Down 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, rugged composite design, impact-release mounting bracket and 20’ cable.