Garmin
Garmin B265LH CHIRP Dual Range Depth and Temperature Transducer
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin B265LH combines two transducer arrays in a single bronze thru-hull housing to deliver dual-band low and high CHIRP performance from one fitting. The low-frequency array sweeps a wide beam for deep-water searching, while the higher-frequency ceramic produces a narrow beam for crisp bottom and water-column detail. Rated to 1 kW and a maximum depth of 3000 feet, it provides exceptional deep-water performance with both wide-area search and fine bottom detail.
Built-in depth and temperature sensing comes as standard, and the flush-mounted housing suits hull deadrise angles up to 20 degrees without a fairing block. Designed for fibreglass and wood hulls, it pairs with CHIRP-capable Garmin sonar such as the GSD 26 professional module. The transducer is supplied with installation instructions, which should be followed carefully to avoid damaging your boat.
PRODUCT DETAILS
- Dual-band CHIRP (Low + High) bronze thru-hull transducer operating at 42-65 kHz and 130-210 kHz
- 1 kW (RMS) transmit power for exceptional deep-water performance with both wide-area search and fine bottom detail
- Beamwidth of 16° to 25° (low) / 6° to 10° (high), -3 dB
- Maximum depth of 3000 ft (914 m)
- 0 degree tilted element matched to 0-20° hull deadrise; no fairing block required
- Built-in water-temperature sensor
- Bare-wire connection with a 39 ft (11.9 m) cable
- Compatible with CHIRP-capable Garmin systems including the GSD 26 module
- Garmin B265LH bronze thru-hull transducer (0 degree tilt, bare-wire)
- Anti-rotation hardware / mounting bolts
- 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 | Dual-band CHIRP (Low + High) |
| Operating Frequency | 42-65 kHz and 130-210 kHz |
| CHIRP Bandwidth | 42-65 kHz (Low array) and 130-210 kHz (High ceramic) |
| Transmit Power | 1 kW (RMS) |
| Maximum Depth | 3000 ft (914 m) |
Beam
| Beamwidth (-3 dB) | 16° to 25° (low) / 6° to 10° (high), -3 dB |
Mounting
| Mounting Style | Bronze thru-hull, flush-mounted |
| Element Tilt | 0 degree tilted element |
| Supported Deadrise | 0-20° |
Physical
| Housing Material | Bronze |
| Built-in Temperature Sensor | Yes |
Connectivity
| Connector | Bare wire |
| Cable Length | 39 ft (11.9 m) |
| Data Provided | Depth and temperature |
| Connector Note | Supplied as a bare-wire transducer (Garmin part 010-11645-20); the current-production B265LH equivalent (010-12379-20) is supplied with a 12-pin connector. A bare-wire to 12-pin sounder adapter (010-11613-10) is available where a plug connection is required. |
Compatibility
| Compatible Systems | Compatible with Garmin GSD 26 CHIRP professional sonar module; also compatible with GPSMAP 7600xsv series (with GSD 25), GPSMAP 5x7/7x1/8x0/10x0 xs series, ECHOMAP CHIRP DV/SV series and STRIKER DV/SV series (adapter cable may be required). Requires a CHIRP-capable Garmin chartplotter, combo or sonar module. |
General
| Series | B265 Series |
| Brand | Garmin (Airmar) |
No videos available for this product.

