Garmin
Garmin Airmar 509LHW - 010-12187-20
£5,170.00
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010-12187-20
The Garmin 509LHW is a 2-3 kW wide-beam CHIRP thru-hull transducer with a 28-60 kHz low band and a 150-250 kHz high wide band that holds a constant 25 deg beam. Its 25-element array sounds to 10,000 ft and pairs with the Garmin GSD 26 sonar module.
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Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin 509LHW (Airmar R509LHW) is the wide-beam member of the high-power 509 thru-hull family. It pairs a 28 to 60 kHz low band with a 150 to 250 kHz high wide band, giving 132 kHz of total bandwidth from a 25-element broadband ceramic array. Where most CHIRP transducers narrow their beam as frequency rises, the wide high band holds a fixed 25 degree beam across the whole range, putting far more coverage beneath the boat.
With 2 to 3 kW of dual-range transmit power the low band sounds to 10,000 ft while the wide high band gives broad, detailed returns to 500 ft. The epoxy housing installs as an external thru-hull with a High-Performance Fairing and suits fibreglass, wood or metal hulls up to 25 degrees deadrise on vessels of 12 m and above. An integral depth and fast-response temperature sensor is built in. The transducer terminates in bare wires and requires the Garmin GSD 26 CHIRP sonar module, which connects to networked GPSMAP chartplotters.
PRODUCT DETAILS
- Highest-power wide-beam thru-hull CHIRP transducer, dual 28-60 kHz (low) and 150-250 kHz (high wide) bands
- High wide band holds a fixed 25 deg beam across the whole frequency range for maximum coverage under the boat
- 2 to 3 kW of dual-range transmit power with 132 kHz of total bandwidth from a 25-element ceramic array
- Low band sounds to 10,000 ft; the wide high band gives broad, detailed coverage to 500 ft
- External thru-hull epoxy housing with High-Performance Fairing, for fibreglass, wood or metal hulls up to 25 deg deadrise on boats 12 m (40 ft) and above
- Integral depth and fast-response water-temperature sensor
- Requires the Garmin GSD 26 CHIRP sonar module and connects to networked GPSMAP chartplotters
- 509LHW thru-hull transducer with 49 ft (15 m) bare-wire cable
- High-Performance Fairing
- Installation instructions
No exploded diagram available for this product.
No compatible transducers listed for this product.
No spares or accessories listed for this product.
Sonar
| Sonar type | Broadband CHIRP, dual-band Low and High Wide-Beam |
| Frequency – Low band | 28 to 60 kHz |
| Frequency – High Wide band | 150 to 250 kHz |
| Total bandwidth | 132 kHz from one transducer |
| Transmit power | 2 to 3 kW (dual-range high power) |
| Maximum depth | Low band to 3,048 m (10,000 ft); high wide band to 152 m (500 ft) |
Beam
| Beamwidth – Low band | 23 to 9 degrees port-starboard, 11 to 5 degrees fore-aft |
| Beamwidth – High Wide band | 25 degrees constant across the band (wide beam for maximum coverage) |
Mounting
| Mount type | Thru-hull, external mount with High-Performance Fairing |
| Supported deadrise | Hulls up to 25 degrees deadrise (with High-Performance Fairing) |
| Recommended boat size | 12 m (40 ft) and above |
| Hull / engine suitability | Fibreglass, wood or metal hulls; inboard, outboard or I/O engines |
Physical
| Housing material | Epoxy transducer housing with High-Performance Fairing |
| Element configuration | 25 internal broadband ceramic assemblies |
| Dimensions | Overall length approximately 587.2 mm (23.12 in); fairing block 444.5 mm (17.50 in) |
| Temperature sensor | Yes – depth and fast-response water-temperature sensor |
Connectivity
| Connector | Bare wires (terminates to the Garmin GSD 26 sonar module) |
| Cable length | 49 ft (15 m) |
Compatibility
| Sonar module required | Requires the Garmin GSD 26 CHIRP sonar module (R509 high-power family). Connects to networked GPSMAP chartplotters via the Garmin Marine Network. |
General
| In the box | 509LHW thru-hull transducer with 49 ft (15 m) bare-wire cable, High-Performance Fairing and installation instructions |
No videos available for this product.
What makes the 509LHW a wide-beam transducer?
Its high band sweeps 150 to 250 kHz and holds a fixed 25 degree beam across the whole range, rather than narrowing as frequency rises. This puts more coverage beneath the boat and reveals more of the water column.
How does the 509LHW differ from the 509LH?
Both are 2-3 kW, 25-element thru-hull CHIRP transducers sharing the 28-60 kHz low band. The 509LHW swaps the standard 130-210 kHz high band for a 150-250 kHz high wide band with a constant 25 degree beam, trading some narrow-beam detail for much wider coverage.
Does the 509LHW need a sonar module?
Yes. It is a 2-3 kW bare-wire CHIRP transducer that requires the Garmin GSD 26 CHIRP sonar module, which connects to networked GPSMAP chartplotters.
How deep can the 509LHW sound?
The low band reaches 10,000 ft and the wide high band gives detailed coverage to approximately 500 ft, depending on water conditions.
How is the 509LHW mounted?
It is an external thru-hull transducer with an epoxy housing and a High-Performance Fairing, for fibreglass, wood or metal hulls up to 25 degrees deadrise on boats of 12 m (40 ft) and above.
