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Humminbird

H7G4-CMSISS

HELIX 7G4 MEGA SI Combo - Version Without Transducer

The Humminbird HELIX 7 G4 MEGA SI is a fishfinder/GPS combo without a transducer, designed for underwater detection and navigation.

Retail priceBenefit from the professional rate

665,83€

Shipping calculated at checkout.

Import duties and taxes are payable by you on delivery.

Prices shown excluding VAT for Kuwait. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Available in stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Fishing type

Sea, Lake, River

Detailed description

The Humminbird HELIX 7G4 MEGA SI combo without transducer is a navigation and underwater detection solution designed for anglers. This model integrates Humminbird’s advanced technologies for detailed underwater bottom visualization while offering the flexibility to choose a transducer suited to specific needs, as it is not included.

Navigation and Cartography

This combo is equipped with a GPS receiver providing enhanced fix accuracy (Enhanced Fix) via WAAS, EGNOS, or MSAS systems. It supports various chart sources such as Navionics+, Navionics Gold, HotMaps, HotMaps Premium, Platinum+, and Humminbird LakeMaster. The AutoChart Live feature allows the creation of custom bathymetric charts. The unit manages 2,750 waypoints, 47 routes, and 50 tracks (with 20,000 track points). Navigation alarms such as off-course are available and require a GPS connection.

Connectivity and Power

The unit operates on 10 to 20 VDC power. It is rated IPX7, ensuring protection against immersion up to 1 meter for 30 minutes.

Documentation

Type	Nom
	EN - Manuel d'utilisation serie HELIX G2-G4 - Combine HELIX 7G4 - MEGA SI - Version Sans Sonde
	EN-FR - Guide d'installation HELIX 5 et 7 - Combine HELIX 7G4 - MEGA SI - Version Sans Sonde

Expert opinion

« Detection analysis: Humminbird HELIX 7 G4 MEGA SI without transducer »

The Humminbird HELIX 7 G4 MEGA SI combo is a strategic choice for experienced sailors and anglers seeking maximum installation flexibility. Its "no transducer" designation is a major asset: it allows the user to specifically select the transducer best suited to their boat type, fishing style (e.g., freshwater, saltwater, trolling, etc.), or existing installation. This avoids purchasing a generic transducer that wouldn’t perfectly match the needs, thereby optimizing overall investment.

The ability to create custom maps via AutoChart Live, combined with compatibility with detailed charts such as Navionics and LakeMaster, turns this combo into a powerful tool for exploring new fishing spots and logging productive areas.

This is a robust unit with IPX7 certification, making it suitable for installation in an open cockpit. However, it is essential to plan for the purchase and installation of a compatible transducer to fully utilize its detection capabilities. This model is ideal for those seeking a customizable and scalable solution capable of adapting to varied marine setups.

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HELIX 7G4 MEGA SI Combo - Version Without Transducer

665,83€

Frequently Asked Questions

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What does the « No Transducer » indication mean for this Humminbird HELIX 7 G4 MEGA SI combo?

The « No Transducer Version » designation means this Humminbird HELIX 7 G4 MEGA SI unit is supplied without a transducer.

What is the screen size of the Humminbird HELIX 7G4 display?

The Humminbird HELIX 7G4 unit features a 7-inch diagonal screen. It is a TFT color display with LED backlighting, providing good information visibility.

Which types of marine charts are compatible with the HELIX 7 G4 MEGA SI combo?

The HELIX 7 G4 MEGA SI unit is compatible with multiple chartplotter sources for navigation and fishing. You can use Navionics+ and Navionics Gold charts, as well as HotMaps, HotMaps Premium, and Platinum+ charts. It also supports Humminbird LakeMaster and CoastMaster charts.

Which types of transducers are compatible with the HELIX 7 G4 MEGA SI combo, given that it is sold without a transducer?

Since the HELIX 7 G4 MEGA SI unit is sold without a transducer, you will need to purchase a compatible transducer separately to use its full sonar features.

The display also supports CHIRP transducer models. It is recommended to check Humminbird’s detailed transducer specifications to ensure optimal compatibility with your HELIX 7 G4 MEGA SI.