The Airmar B164 delivers 1 kW of sonar power in a flush-mount, tilted-element thru-hull design built for center-console and trailered vessels. No fairing is required — the low-profile bronze housing sits less than 6.35 mm (1/4") below the hull, so it clears trailer rollers and bunks without issue. Ceramic arrays are angled internally to produce a true vertical beam aimed directly beneath the hull, and the fixed 20° tilt is matched to hull deadrise angles of 16–24°. Dual-frequency operation, fast-response water temperature sensing, and Patented Xducer ID® technology round out the package.

Specifications:

• Power Rating: 1 kW
• Mounting Style: Tilted Element Thru-Hull
• Tilted Element: Yes — fixed 20° for 16–24° hull deadrise angles
• Single or Dual Frequency: Conventional Dual Frequency
• Low Frequency: 50 kHz, 22° beamwidth — depth performance to 529 m (1,800')
• High Frequency: 200 kHz, 6° beamwidth — depth performance to 235 m (800')
• Conventional Beam: 22°×20° / 6°
• Max Depth: 500 m (1,640')
• Max Deadrise Angle: Up to 24°
• Functions: Depth, Temperature (fast-response)
• Compatible Echo Sounders: 600 W or 1 kW
• Connector: 8-pin for Garmin
• Housing Material: Bronze
• Hull Material Compatibility: Fiberglass or wood
• Max Vessel LOA: Up to 11 m (36')
• Housing Protrusion Below Hull: Less than 6.35 mm (0.25")
• Retractable Housing: No
• Hole Size: 95 mm (3-3/4")
• Usable Shaft Length: 71 mm (2.80")
• Acoustic Window: Urethane
• Weight: 2.7 kg (6 lbs.)
• Common Use: Leisure/Yachting, Fishing
• Patented Xducer ID® technology included
• Stainless steel housing version available as SS164 (compatible with all hull materials)