The Humminbird XNT-9-HW-MDI-75-T brings MEGA Down Imaging and Dual Spectrum CHIRP 2D sonar together in a single transom-mount package built for HELIX 7 and HELIX 8 fishfinders. A rugged composite housing, impact-release bracket, built-in temperature sensor, and 20-foot cable make this a ready-to-install upgrade for anglers who want high-resolution bottom detail alongside traditional sonar.

Specifications:

• Compatible Units: HELIX 7 CHIRP MEGA DI GPS G3, HELIX 7 CHIRP MEGA DI GPS G3N, HELIX 7 MDI GPS G4N, HELIX 8 CHIRP MEGA DI GPS G3N, HELIX 8 CHIRP MEGA DI GPS G4N
• Cable Length: 20 ft
• Dual Spectrum CHIRP Frequency Range — Full: 150–220 kHz, Narrow: 180–240 kHz, Wide: 140–200 kHz
• Dual Spectrum CHIRP Maximum Depth: 1,200 ft (365 m)
• MEGA Down Imaging 455 kHz (440–500 kHz) Maximum Depth: 350 ft (107 m)
• MEGA DI 1,075–1,150 kHz Maximum Depth: 125 ft (38 m)
• Built-in Temperature Sensor: Yes
• Mounting Style: Transom mount with impact-release bracket
• Construction: Rugged composite

Resources:

• Owner's Manual (PDF)
• Installation Guide (PDF)

⚠️ California Prop 65 Warning: ⚠️ WARNING: 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.