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5 inch screen




5 inch screens (25.4mm)

Where space is at a premium, we stock a selection of 5-inch screen GPS chart plotters. These compact devices offer an efficient space saving option without sacrificing technical quality or features and despite their compact design, our 5- inch chart plotters boast a range of high-spec’ marine navigation and system features. Our range has models starting from one with all the essentials for safely navigating at sea to ones with a built in Class B+ SOTDMA AIS transceiver (transponder), another with 600-Watt sounder/fish finder and even one that has both additions – everything is built in.

Need More Information? When it comes to selecting the right marine electronics for your vessel, the AVES Marine team are on hand as your experts on all things ONWA. Call us on 01357 680054 or click this text to leave a message for us 


KP25  5-inch MFD GPS chart Plotter product with everything that you need for navigation. Although this is the starter plotter in our 5” range it doesn’t lack in its functionality. A better way of thinking about the functionality between these products is that they are the same product but with additions such as AIS and Sonar installed in the more expensive versions. All have a UK implemented 2 year warranty with technical support for the life of the product.




Click to go to KP-25





KP25A Essentially the same as the KP25 but with the addition of a built in ClassB+ SOTDMA AIS Transceiver, sometimes referred to as an AIS Transponder – the correct terminology to use is often argued about.  




Click to go to KP-25A





KP25F  Has the addition of a sonar module installed. This provides a 600- Watt sounder Fish Finder function and comes complete with a dual frequency transducer 





Click to go to KP-25F






KP25x  This remarkable 5- inch plotter has everything built into it. The X version has the benefit of both the 600-Watt Sonar and the Class B+ AIS transceiver – with everything built into the same case.

Click to go to KP-25X


KEC-30G Electronic compass + Heading Sensor KEC-30G Electronic compass + Heading Sensor
-100 % Out of Stock Out of Stock
Brand: Onwa Model: KEC-30G
SUMMER SALE - This item has 1 year full warrantyThe 9 axis Heading Sensor looks like a conventional GPS but the similarity ends there. Inside its IP67 case there is a very sophisticate device that can calculate SOG, COG, position and heading, pitch, roll and yaw and it does all of these rather well...
£299.00 £0.00
Ex Tax:£249.17
New old stock KP38S New old stock KP38S
-49 %
Brand: Onwa Model: KP-38S
AVES Summer 25 sale. One year warranty on this product.KP-38SThis version 5 inch plotter was originally designed as an emergency navigation aid that is super low power and can run from a 5-volt supply for a great many hours. However, it can also run from a 12- or 24-volt supply via a small power a..
£169.00 £330.00
Ex Tax:£140.83
Brand: Onwa Model: KP-25
KP-25 Latest 5-inch model from Onwa Marine, release date February 2024. Improvements over earlier models include: a new and faster processor for use with the ever more complex charts now available. Brighter screen (1000 nits) for those bright sunny days and NMEA 2000 data but retaining NMEA0183 for ..
£339.00
Ex Tax:£282.50
Brand: Onwa Model: KP-25A
KP-25A with built in Class B+ AIS transceiver. Class B+ is the later version of the original Class B two-Watt system but having five Watts output and using SOTDMA transmitting technology (Class B is CSTDMA).  SOTDMA is superior to Class B CSTDMA, not only in being higher power, but als..
£479.00
Ex Tax:£399.17
Brand: Onwa Model: KP-25F
This model isn’t just a very nice MFD chart plotter but is also an excellent tool for finding fish and for viewing the nature of the seabed. This is an important and valuable asset, for example, when setting an anchor, as the sonar display will reveal details of the bottom, its hardness (for anc..
£499.00
Ex Tax:£415.83
Brand: Onwa Model: KP-25X
This model has everything built in - with both Class B+ AIS and sounder/fishfinder. All these features in one small box, how do they manage to do this? Well, years of practice is the answer. Whilst the 'big name' manufactures have been producing basic chart plotters, Onwa have been producing..
£695.00
Ex Tax:£579.17
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