Garmin
Garmin Airmar B275LHW Transducer
£2,639.99
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010-12183-20
The Garmin B275LHW is a 1 kW thru-hull CHIRP transducer with a 42-65 kHz low band and a 150-250 kHz high wide band that holds a constant 25 deg beam. It works with a built-in 1 kW CHIRP sounder or a GSD 26 / GSD 25 module.
✓
Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin B275LHW is a 1 kW thru-hull CHIRP wide-beam transducer built around an 8-element broadband ceramic array. It pairs a 42 to 65 kHz low band with a 150 to 250 kHz high wide band, giving 123 kHz of total bandwidth from one transducer. 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 and revealing more fish in the upper water column.
With 1 kW of transmit power the low band sounds to 3,000 ft while the wide high band gives broad, detailed returns to 500 ft. The urethane housing installs as an external thru-hull with a High-Performance Fairing and suits fibreglass, wood or metal hulls up to 22 degrees deadrise on boats of 12 m and above. An integral depth and fast-response temperature sensor is built in. The B275LHW runs on Garmin chartplotters with a built-in 1 kW CHIRP sounder, or through the Garmin GSD 26 or GSD 25 sonar module.
PRODUCT DETAILS
- Thru-hull broadband CHIRP wide-beam transducer, dual 42-65 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
- 1 kW of transmit power with 123 kHz of total bandwidth from an 8-element ceramic array
- Low band sounds to 3,000 ft; the wide high band gives broad, detailed coverage to 500 ft
- External urethane thru-hull with High-Performance Fairing, for fibreglass, wood or metal hulls up to 22 deg deadrise on boats 12 m (40 ft) and above
- Integral depth and fast-response water-temperature sensor
- Runs on Garmin units with a built-in 1 kW CHIRP sounder, or via the GSD 26 or GSD 25 sonar module
- B275LHW thru-hull transducer with 39 ft (12 m) cable
- High-Performance Fairing
- Mounting hardware
- 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 | 42 to 65 kHz |
| Frequency – High Wide band | 150 to 250 kHz |
| Total bandwidth | 123 kHz from one transducer |
| Transmit power | 1 kW |
| Maximum depth | Low band to 914 m (3,000 ft); high wide band to 152 m (500 ft) |
Beam
| Beamwidth – Low band | 25 to 16 degrees |
| 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 22 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 | Urethane transducer housing with High-Performance Fairing |
| Element configuration | 8 internal broadband ceramic assemblies |
| Weight | 7.3 kg (16 lb) |
| Temperature sensor | Yes – depth and fast-response water-temperature sensor |
Connectivity
| Connector | 12-pin Garmin (Mix-and-Match) on this Garmin part number |
| Cable length | 39 ft (12 m) |
Compatibility
| Compatible sounders | Works with Garmin chartplotters that have a built-in 1 kW CHIRP sounder (GPSMAP xsv series), or via the Garmin GSD 26 or GSD 25 sonar module. |
General
| In the box | B275LHW thru-hull transducer with 39 ft (12 m) cable, High-Performance Fairing, mounting hardware and installation instructions |
No videos available for this product.
What makes the B275LHW 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 upper water column.
How does the B275LHW differ from the B265LH?
Both are 1 kW, 8-element thru-hull CHIRP transducers sharing the 42-65 kHz low band. The B275LHW swaps the standard 130-210 kHz high band for a 150-250 kHz high wide band with a constant 25 degree beam, and uses a urethane rather than bronze housing.
Does the B275LHW need a separate sonar module?
Not necessarily. It runs directly on Garmin chartplotters that have a built-in 1 kW CHIRP sounder, such as the GPSMAP xsv series. Where there is no built-in 1 kW sounder it can be driven by the Garmin GSD 26 or GSD 25 sonar module.
How deep can the B275LHW sound?
The low band reaches approximately 3,000 ft and the wide high band gives detailed coverage to approximately 500 ft, depending on water conditions.
How is the B275LHW mounted?
It is an external thru-hull transducer with a urethane housing and a High-Performance Fairing, for fibreglass, wood or metal hulls up to 22 degrees deadrise on boats of 12 m (40 ft) and above.
