Garmin Airmar B150M Entry Level CHIRP Thru-Hull Transducer with Depth & Temperature (0° Tilt), 300W
The Garmin Airmar B150M (0° Tilt) is a bronze thru-hull mount transducer that serves as an entry level CHIRP solution.
The unit measures both depth and water temperature, mounts through the hull, and is terminated with an 8-pin Garmin connector.
Installers fit the unit to fiberglass or wood hulls with hull deadrises of 0° to 7°.
Technical Specifications
| Power Rating | 300 W |
|---|---|
| Frequency Range | 95–155 kHz (Medium CHIRP) |
| Total Bandwidth | 60 kHz |
| Beamwidth | 26°–17° |
| Max Depth | 183 m (600 ft) |
| Element Tilt | 0° (for hull deadrise 0°–7°) |
| Housing Material | Bronze |
| Acoustic Window | Urethane |
| Connector | 8-pin Garmin |
| Hull Compatibility | Fiberglass or wood |
| Hole Size | 51 mm (2 in) |
| Usable Shaft Length | 66.5 mm (2.62 in) |
| Weight | 4 lbs |
| Dimensions (L × W × H) | 10.16 × 7.87 × 4.45 in (258 × 200 × 113 mm) |
| Functions | Depth, Temperature |
Compatibility & Applications
- Fits fiberglass or wood hulls with deadrise angles up to 24°, with the 0° tilt version covering 0°–7° deadrise.
- Mounts on stepped, planing, or displacement hulls.
- Pairs with sportfishing and commercial vessels up to 8 m (25 ft) in length.
- Wires to a single echosounder module or multifunction display, measuring both depth and temperature through one connection.
- Includes a 33 ft Airmar Mix and Match cable with 8-pin Garmin connector.
- Drops into installations where the B150M (12° tilt) or B150M (20° tilt) is present, with each fixed-tilt version compensating for a specific hull deadrise range.
The flush-mounted bronze housing eliminates the need for a fairing block, as the ceramic element is tilted inside to orient the beam directly downward.
The unit delivers Medium CHIRP — a balance between the depth penetration of Low CHIRP and the target resolution of High CHIRP — across 60 kHz of total bandwidth from a single transducer.
