The Airmar P79 in-hull transducer mounts inside the hull without drilling holes, bonding a base directly to the hull and filling it with liquid — a design that transmits sound waves more efficiently than traditional puck-style transducers. A twist-lock mechanism secures the transducer element to the base, and the assembly accommodates hull deadrise angles from 2° to 22°, keeping the beam vertically oriented for accurate depth readings. Compatible with the Humminbird #9 7-pin plug, this unit suits solid fiberglass hulls and thinner aluminum hulls, and is well-matched to planing powerboats, trailered boats, rigid inflatables (RIBs), and racing sailboats up to 8 meters (25 feet).

Features:

• Adjusts to hull deadrise angles from 2° to 22°
• No holes required — no hull protrusions
• Depth reading only
• Recommended for solid fiberglass hulls
• Compatible with aluminum hulls under 3.8 mm (0.16") thick
• Suited for planing-hull powerboats, trailered boats, RIBs, and racing sailboats
• Boat size: up to 8 m (25 ft)

Specifications:

• Weight: 2.3 kg (5 lb)
• Hull Deadrise: 0° to 22°
• Acoustic Window: Layered plastic urethane
• Plug: Humminbird #9, 7-pin

Resources:

• Owner's Manual (PDF)
• Product Brochure (PDF)

Returns Notice: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.