NEW Product in stock now



2 in stock (can be backordered)

This is a brand new product from Onwa Marine. In Stock now.

Featuring the very latest NMEA OneNet, an IP based network data transfer system – it is the future for data transfer. Read about OneNet in our blog. (click button) OneNet, what’s that?

KM-Multi 8

Latest 8 inch model from Onwa Marine. This 8 inch plotter replaces the KP-8299 which is now out of production. What a move forward this new model is – with a fantastic new 1024 x 768 resolution screen and NMEA2000 data. As a starter high end plotter this is ideal as other items, such as ClassB+ AIS transceiver, 600/1000 Watt fish-finder/sounder and even Radar can be added at a later date. Connecting the different Onwa devices together is plug and play via an ethernet port that supports the new NMEA OneNet® system. Connecting Onwa and other make devices that use NMEA0183 and NMEA2000 can be done via the dedicated 0183 and 2000 data ports on the KM models.


Click the button below for a comprehensive guide to the KM models by Roger Gaspar, a customer of AVES Marine and well-known author of Crossing the Thames Estuary. Roger’s review deals specifically with the KM12X but the operation applies to any KM model.

Instructional video on the KM


Diagram showing expandable features:



Some additional notable features:

1024 x 768 display

NMEA 2000 and 0183 Plus the latest NMEA ONENET

Built-in Radar function (requires Radar antenna) KM displays as a  dedicated conventional Radar screen and also as the radar trace overlaid onto the chart.


HDMI option

Can use K-charts 2 & 3.2, C-Map Max and Navionics +

SD card system updates

Can display gauges (engine etc), camera

An independent professional reviewer takes a look at a KM8 and likes it, click the button below:

KM8 review




2 in stock (can be backordered)

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