Lowrance

Lowrance HALO20 20" Radar Dome w/5M Cable

SKU: 80604 · UPC: 9420024173855 · MPN: 000-14543-001
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02 · Overview

Lowrance HALO20 20" Radar Dome w/5M Cable — Product description

Unmatched Visibility from Close Quarters to Horizon

Picture this: you're maneuvering through a foggy inlet or scanning for markers at dusk. The Lowrance HALO20 radar dome changes the game with its pulse compression technology, blending razor-sharp short-range clarity—down to just 50 meters—with impressive reach up to 24 nautical miles. Unlike older magnetron systems that struggle with clutter near the boat, this 20-inch dome paints a clean image, highlighting buoys, smaller vessels, and debris without the noise.

Boaters rave about its ability to pick up targets others miss, making it a go-to for trailered boats or compact cruisers where space is premium. The narrow 4.9-degree horizontal beamwidth ensures you spot what's ahead precisely, reducing guesswork during those critical moments.

Proactive Collision Avoidance and Situational Mastery

Safety isn't reactive—it's about staying steps ahead. The HALO20's MARPA (Mini-Automatic Radar Plotting Aid) tracks up to 10 targets at once, or doubles to 20 in dual-range mode, calculating course, speed, and closest point of approach. Set guard zones to get alerts on potential threats, whether it's a drifting log in busy channels or approaching traffic at night.

For coastal anglers or weekend warriors, this means more confidence in low-visibility ops, like heavy rain or dawn patrols. It's radiation-safe too, so no worries about crew exposure during family outings.

Power Up in Seconds, Not Minutes

Forget the long warm-ups of traditional radars that drain batteries while you wait. HALO20's InstantOn™ tech springs to life from standby in under a second, or from full power-off in moments. Low power draw—typically 18W—keeps your 12/24V system happy, ideal for extended trips without constant generator runs.

Switch effortlessly between optimized modes: Harbour for cluttered marinas, Offshore for open water, Weather to pierce rain squalls, or custom tweaks for your style. At 24 RPM rotation, updates are fluid and responsive, with North/Course Up and relative/true motion views adapting to your needs.

Ideal for Everyday Boating Adventures

Whether you're chasing reefs, navigating locks, or just enjoying sunset cruises, HALO20 fits seamlessly. Its rugged IPX6 waterproofing and -25°C to +55°C operating range handle harsh marine environments, shrugging off 100-knot winds. Compact at 510mm diameter and 5.9kg, mounting is straightforward on most arches or masts.

Real-world tip: Pair it with your chartplotter for overlay views, turning raw data into intuitive navigation. Anglers love the short-range detail for spotting bird piles over bait balls, while cruisers appreciate the clutter-free long-range scan.

Detailed Technical Specifications

Category Specification
Approvals FCC, RED, CE, EN302-248, Industry Canada RSS238, RCM, IEC60945, IEC60950
Power Consumption (Max/Typical) 20W / 18W
Recommended Fuse 5A
Supply Voltage 10.5-31.2 VDC (12/24V)
Humidity 95% RH at 35°C
Operating Temperature -25°C to +55°C (-13°F to +130°F)
Waterproof Rating IPX6
Dome Dimensions (Dia x H) 510mm (20") x 223mm (8.8")
Weight (w/o cable) 5.9kg (13 lbs)
Beamwidth 4.9° H x 25° V
Max Range 24 NM
Min Range 50m / 200ft / 50yd
Max Wind Speed 100 knots (51 m/s)
Rotation Speed 24 RPM
Technology 10W Pulse Compression
Modes Harbour, Offshore, Weather, Custom; North/Relative/True Motion

What's Included in the Package

  • 20" radar dome
  • 5m power/data cable
  • Ethernet adapter cable

Everything you need for quick setup and integration with compatible displays.

Frequently Asked Questions

What makes pulse compression technology in the HALO20 better for boating?

Pulse compression delivers high-resolution images at both short and long ranges without the bulk or warm-up time of traditional radars, minimizing clutter for clearer detection of nearby obstacles and distant targets.

How does InstantOn™ work on this radar?

It activates radar coverage almost immediately from standby or power-off, unlike conventional systems that take minutes to heat up, ensuring you're covered without delay.

What is MARPA target tracking and how many targets can it handle?

MARPA automatically tracks targets' speed, course, and collision risk. The HALO20 monitors up to 10 targets standard, or 20 in dual-range mode for enhanced monitoring.

Is the HALO20 suitable for harsh weather conditions?

Yes, with IPX6 waterproofing, operation from -25°C to +55°C, and tolerance for 100-knot winds, plus dedicated Weather mode to cut through rain clutter.

What's the power draw like for battery-powered boats?

It sips power at 18W typical (20W max) on 12/24V systems, with a 5A fuse recommendation, perfect for efficient all-day use.

How compact is the HALO20 dome for installation?

Measuring 20 inches in diameter and 8.8 inches high at just 13 lbs, it's designed for easy mounting on most vessels without dominating the silhouette.

Does it offer different operational modes?

Absolutely—Harbour for ports, Offshore for sea, Weather for storms, plus custom options and motion modes like North Up or True Motion for versatility.

HALO20 20" Radar Dome with 5M Cable

Unrivalled Short-To-Mid-Range Performance

Extend your view from the bow of your boat out to 24 nautical miles with pulse-compression radar technology that not only delivers a powerful mix of short and long-range detection, but provides precise target definition with minimal clutter.

Better Situational Awareness, Collision Avoidance

HALO20 radar delivers a comprehensive range of features to enhance your situational awareness and on-water safety. Monitor selected collision hazards with MARPA target tracking, tracking up to 10 targets, or 20 in dual range. Whether you’re navigating through crowded waterways or contending with poor visibility, HALO20 radar cuts through the clutter to give you a clear and current picture of your surroundings.

Ready Instantly

HALO20 Radar wakes instantly from its low-power standby mode, delivering radar coverage exactly when and where you want it. Even if your HALO20 radar is completely powered down start-up is a matter of seconds, not minutes like traditional pulse radar.

Easy to Use

Harbour, offshore, weather and custom modes tune HALO20 Radar’s advanced signal processing to help ensure that targets can be seen vividly – even in the toughest environmental conditions.

Features:

  • 10W Pulse Compression
  • 24 nm range from a compact 20-inch dome
  • Unrivalled short range
  • Radiation safe
  • Easy operation with harbour, offshore and weather mode
  • MARPA target tracking
  • InstantOn™
  • Low Power Consumption
  • Guard Zones

Included:

  • 20" dome
  • 5m cable (000-14547-001)
  • Ethernet Adapter Cable (000-14552-001)


The Lowrance Halo 20 radar is a cost-effective solution for rowers. It can improve situational awareness and collision avoidance, and detect collision hazards and other targets nearby and up to 24 nautical miles. With a small footprint and small size, Halo 20 is an ideal radar solution for small budget fishing boats and yacht buyers.
SKU: NVN-80604
MPN: 000-14543-001
UPC: 9420024173855
03 · The numbers

Technical specifications

BrandLowrance
ModelLowrance HALO20 20" Radar Dome w/5M Cable
SKU / MFR#80604

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04 · Before you buy

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05 · Customer voices

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