Seanav Marine

Onwa KM-12 12-Inch Marine GPS Chartplotter

Advanced Navigation: ONWA KM-12 Chartplotter offers a 12-inch high-resolution display, ideal for precise maritime navigation. Radar Overlay: Seamlessly overlays radar data on charts, enhancing situational awareness and navigation accuracy. Built-in AIS: Features a built-in Class B+ AIS Transponder (VHF antenna required) for real-time vessel tracking. Flexible Connectivity: Supports NMEA 0183, NMEA 2000, Wi-Fi, HDMI, and Ethernet for easy integration with other marine systems. User-Friendly: Intuitive touchscreen interface designed for ease of use, making it perfect for both seasoned mariners and beginners.

SKU: KM-12
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Description

The ONWA KM-12 Marine GPS Chartplotter is a powerful and feature-rich navigation device designed for modern mariners. With a large 12-inch Color TFT dayview LCD display offering a resolution of 1024×768 pixels, this chartplotter ensures superior clarity in all lighting conditions. Its intuitive touchscreen interface is easy to navigate, making it a great choice for both experienced sailors and those new to marine navigation.

One of the standout features of the KM-12 is its radar overlay capability, which allows radar data to be displayed directly on nautical charts. This feature enhances situational awareness, providing real-time radar information alongside visual navigation aids. In addition, the KM Series GPS chartplotters include a built-in Class B+ AIS Transponder, offering enhanced vessel tracking and communication. The AIS feature allows mariners to receive and send AIS messages, broadcast information, and track nearby vessels in the area, making navigation safer and more efficient.

The KM-12 offers flexible connectivity options, including NMEA0183, NMEA 2000, Wi-Fi, HDMI, and Ethernet, enabling easy integration with a wide range of marine devices and systems. Whether you are navigating in coastal waters or open seas, the KM-12 ensures reliable performance with its IPX6 waterproof rating, making it resistant to water damage in harsh marine environments.

Built for durability, the KM-12 operates in a temperature range from -15°C to +55°C for the display unit and -25°C to +70°C for the antenna unit, ensuring reliable operation in extreme conditions.

With its large display, radar integration, and robust AIS features, the ONWA KM-12 Chartplotter is the ultimate choice for precise and safe maritime navigation.

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Technical Specifications & Operational Standards

Review certified engineering parameters, electrical inputs, data protocols, and Class compliance standards for this unit:

OEM Brand / ManufacturerOnwa Marine
Model / Part NumberKM-12
Equipment ClassificationMarine Multi-Function Display (MFD) & GPS Chartplotter
Display ScreenSunlight-Viewable Color TFT LCD (High Contrast Multi-Color)
Power Supply Input10.5 to 35 V DC (Reverse Polarity & Overvoltage Protected)
Integrated SensorsInternal 72-Channel GNSS/GPS Receiver + Dual-Frequency Echo Sounder Support
Data InterfacesNMEA 0183 (2 Inputs / 2 Outputs), NMEA 2000, RS-232, HDMI Output
Ingress ProtectionIPX6 Waterproof Front Display Enclosure
Stock & Port LogisticsReady Stock for Immediate Vessel Supply across Mumbai, JNPT, Kandla, Cochin, Chennai & Visakhapatnam
In-the-Box DocumentationOEM Certificate of Conformance, Wiring Schematics, Installation & Operating Manual
B2B Marine Procurement & Same-Day Port Dispatch

Seanav Marine maintains bonded warehouse spare parts inventory and factory-trained technical riding squads across all major Indian ports. Immediate dispatch available to vessel agents, ship chandlers, and technical managers at Mumbai, JNPT (Nhava Sheva), Kandla, Mundra, Cochin, Chennai, and Visakhapatnam (view all 400+ ports →).

Manufacturer documentation and compatibility

Select the exact model, hardware generation and document revision. Before ordering, confirm the equipment interfaces, power requirements, required approvals and included accessories against the applicable manufacturer documentation. Send nameplate photographs, the installed equipment details, vessel name, port and ETA with your enquiry.