ONWA KP-27A 7-Inch Marine GPS Chart Plotter with Class B+ AIS (Universal)

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Professional-Grade Marine Navigation with Integrated Class B+ AIS

Navigate with ultimate confidence using the ONWA KP-27A 7-Inch Marine GPS Chart Plotter. Engineered for harsh marine environments, this high-performance navigation hub integrates a built-in Class B+ AIS Transponder, leveraging SOTDMA technology to deliver higher transmit power and more frequent position updates than standard Class B systems.

Engineered for the Open Sea

  • Sunlight-Readable Display: The 7-inch high-resolution TFT color LCD is optimized for maximum visibility under direct, intense sunlight, featuring an anti-reflective matte finish.
  • IP66 Waterproof Integrity: Enclosed in a rugged, UV-stabilized high-impact ABS housing designed to withstand heavy spray, continuous washdowns, and salt-air corrosion.
  • Tactile Control System: Equipped with heavy-duty, backlit silicone buttons and an ergonomic directional pad, allowing precise setting adjustments even when wearing gloves or in rough seas.

Robust Connectivity & Fitment

The unit supports standard NMEA 0183 protocols, allowing seamless integration with onboard depth sounders, VHF radios, and wind sensors. Ready for bracket or flush mounting on fiberglass, aluminum, or wood consoles.

AirowMarine KP-27A technical specifications infographic illustrating Class B+ AIS compatibility, 7-inch daylight LCD, IP66 waterproof rating, physical dimensions of 155.1mm by 241.3mm by 62.9mm, and a weight of 1.3kg.

Frequently Asked Questions

Will the display wash out or become unreadable under intense direct midday sunlight?
No. The ONWA KP-27A is engineered with a high-luminance, 7-inch daylight-viewable LCD featuring an advanced anti-reflective matte screen coating, ensuring clear navigation visibility and high-contrast reading even in direct midday sun.
Can this chart plotter survive continuous exposure to heavy salt spray and high humidity?
Absolutely. The device features a rugged, UV-stabilized ABS chassis sealed completely to IP66 waterproof specifications. All rear ports are gasket-sealed, and internal components are protected against heavy salt-spray and humid maritime air.
How does the built-in Class B+ AIS differ from standard Class B systems?
The integrated Class B+ AIS transponder utilizes advanced SOTDMA (Self-Organizing Time Division Multiple Access) technology. This provides a higher transmit power (5W vs 2W) and more frequent position updates compared to standard Class B systems, ensuring faster detection by commercial vessels in heavy traffic.

Engineering Specs

REV: 2025.Q4 // TECH-STANDARD
Material_Grade
IP66 Waterproof Ruggedized Marine Grade Electronics Assembly
Surface_Finish
Matte Non-Glare Anti-Reflective Display Surface with Textured Polymer Bezel
UV_Resistance
UV-Stabilized High-Impact ABS Housing (ASTM D4329 Certified equivalent)
Corrosion_Rating
Salt-Spray Tested IP66 Sealed Enclosure with Gold-Plated Connector Pins
Compatibility
Yachts, Center Consoles, Bass Boats, Commercial Trawlers, Catamarans
Hull_Integration
Fiberglass, Aluminum, Steel, Wood (Bracket or Console Mounted)
Standard_Ref
Universal Marine NMEA 0183 Protocol Standard

ESTABLISHED 2017

AirowMarine

Professional Marine Hardware for a Safer Voyage.

Design engineers and marine consultants reviewing technical blueprints and a stainless steel porthole window assembly in an office overlooking a container port.

Our Roots

Hong Kong Based, 8 Years of Expertise

The story of AirowMarine began eight years ago. Headquartered in Hong Kong, we have been dedicated to the global operation and brand building of marine accessories. These eight years of experience have taught us that on the unpredictable sea, every single component carries the trust and safety of the boat owner.

B2B marine hardware production: A massive mirror-polished 316 stainless steel boat anchor being hoisted for quality verification in AirowMarine’s industrial workshop in mainland China.

Supply Chain

Invested Factories in Mainland China

To ensure our products withstand extreme environments, we are more than just a bridge for trade. AirowMarine has invested in its own manufacturing facilities in Mainland China. Leveraging the region's mature and efficient industrial supply chain, we are deeply involved in the entire process—from raw material selection and precision machining to final assembly. We avoid exaggerated claims; instead, through professional logistics and rigorous quality control, we ensure every product delivered to you meets high nautical-grade standards.

Technical quality control inspection showing a Mitutoyo digital caliper measuring a polished marine fitting at 12.45mm precision.

Reliability

Strict QC & Global Logistics

As a provider of marine accessories, our business is intimately connected to the water. We believe that protecting the ocean is not just a slogan; it must be reflected in every detail of our business. Currently, AirowMarine is continuously optimizing our packaging solutions: we maximize the reduction of single-use plastics in our packaging and shipping processes, using recyclable paper-based cushioning materials whenever possible. Our products are built to power your voyage, while our packaging is designed to protect the purity of the blue sea.

Close-up of a 316 stainless steel circular louvered deck vent in eco-friendly honeycomb paper packaging with AirowMarine shipping label.

Our Mission

Protecting the Blue, Plastic-Free

We are aware that there is always room for improvement, but we have never stopped in our pursuit of excellence and environmental responsibility. AirowMarine is committed to providing you with durable, reliable, and eco-conscious marine accessories.

Expert Guidance

Technical help in 24 hours

International Delivery

Secure & Tracked Shipping

Custom Solutions

Tailored parts for your boat

Factory Direct

Invested supply, best value

Proven Quality

Tested for nautical safety