Humminbird Helix 7 GPS Chirp MSI G4N [411940-1] Marine Navigation & Instruments | Marine Monitors Round Louvered Vents allow air

Round Louvered Vents allow air in while keeping water out

CLEAR COAT SAFE: Extremely soft and plush fibers gently lift dirt and grime while adding wax protection on clear coat and single stage paint

Quad-Blade Chopping Design: The advanced quad-blade system efficiently grinds waste

Retractable straps with easy ratcheting mechanism

Deck plate hole is 3/4"-10

Humminbird Helix 7 GPS Chirp MSI G4N [411940-1] Marine Navigation & Instruments | Marine Monitors Round Louvered Vents allow airHelix 7 GPS Chirp MSI G4N The HELIX 7 MEGA SI GPS G4N fish finder features MEGA Side Imaging, MEGA Down Imaging, Dual Spectrum CHIRP Sonar, AutoChart Live, Internal GPS, and Humminbird Basemap built in. An upgraded high definition 7" display will give you the best view of the many pre loaded split screen view options so that you'll never miss a fish. All HELIX 7 G4N models support Ethernet networking, Bluetooth(R), NMEA 2000(R), and are compatible