Airmar B744V – sonda transversal de bronze 600W (50/200kHz) amb base + velocitat superficial + temperatura – (8 pins)

The Garmin Airmar B744V transducer has an RMS power output of 600W. This power output allows it to provide high-quality data for various freshwater and coastal fishing applications.

The Airmar B744V fishfinder operates on two frequencies:

50 kHz: for wide coverage and detection of fish schools.
200 kHz: for precise definition of bottom structures and better target separation.

The Garmin Airmar B744V is a multisensor transducer that provides depth, surface speed, and water temperature data. It offers a compact solution that minimizes hull penetrations.

The Airmar B744V transducer is designed for boats up to 9 meters in length. It is suitable for fiberglass or wooden hulls.

The B744V depth sounder provides bottom detection up to:

366 meters (1200 feet) at 50 kHz.213 meters (700 feet) at 200 kHz.

The Airmar B744V depth sounder provides the following beam angles:

A 45° beam at 50 kHz, ensuring wide coverage. A 12° beam at 200 kHz, offering precise definition.

The Airmar B744V transducer guarantees reliable surface speed measurements even at high speeds, with excellent results up to 30 knots (34 MPH). This is particularly advantageous for planing hulls where signal stability is critical.

The housing of the Airmar B744V depth sounder is made of bronze. This material is recommended for fiberglass or wooden hulls.

The Airmar B744V transducer, with its bronze housing, is specifically recommended for installation on fiberglass or wooden hulls.

No, the Airmar B744V transducer must never be installed on a metal hull. The bronze housing of the sensor would cause electrolytic corrosion with a metal hull, which could seriously damage the boat.

The Airmar B744V transducer is fitted with an 8-pin connector. This detail is critical for ensuring compatibility with your Garmin fishfinder or multifunction display.

Yes, installing a High-Performance Fairing is mandatory with the Airmar B744V transducer. A fairing carefully cut to fit the hull shape ensures a watertight surface around the drilled hole. Without a fairing, the watertight surface may be insufficient, leading to water leaks inside the boat.

During installation, the following precautions are mandatory:

Always wear safety glasses, a dust mask, and hearing protection.Immediately check for leaks when the boat is launched and do not leave it unattended for more than three hours.Never pull, carry, or hold the sensor by its cable to avoid damaging internal connections.Always operate the transducer in water; running it in air can cause overheating and failure.Never strike the sensor.Never use solvents, cleaners, fuel, or products containing solvents that could damage plastic parts.Never machine-sand or clean the sensor with a pressure washer.

To choose the best location, follow these guidelines:

Ensure the water flow under the hull is smooth, with minimal bubbles and turbulence, especially at high speed.The sensor must remain continuously submerged at all speeds.The transducer beam must not be obstructed by the keel or propeller shaft.Choose a location away from interference sources such as propellers, shafts, other machinery, other fishfinders, and other cables.For displacement hulls, mount it at 1/3 of the waterline length and 150-300mm (6-12") from the centerline.For planing hulls, install it well aft near the centerline and inside the first lifting strakes.

Yes, it is crucial to avoid the following locations:

In line or near water intakes or discharges.Behind frames, fittings, or hull irregularities that could disrupt water flow.Where the boat may be supported during towing, launching, hauling, or storage to avoid damaging the transducer face.

To ensure perfect watertightness:

The fairing must be carefully cut to fit the hull shape and must not have a gap larger than 3 mm (1/8") between it and the hull.The anti-rotation bolt for the fairing is mandatory and must be installed.All O-rings on the paddlewheel insert must be intact and properly lubricated with the provided silicone grease before insertion.The paddlewheel insert or the blanking plug must be securely fastened with the insert nut and locking wire. The valve alone is not a watertight seal.Use marine sealant suitable for below-waterline applications.

Yes, it is imperative to lubricate all O-rings of the impeller wheel insert. They must be intact and properly lubricated with the provided silicone grease to ensure a watertight seal. Attempting to install the insert without adequate lubrication can damage the O-rings and prevent complete insertion and proper sealing.

Yes, the B744V sensor is designed so the impeller insert can be removed for maintenance, cleaning or replacement without having to remove the entire sensor from the hull. However, it is critical not to remove the CAP nut, as the entire valve assembly would come out. The insert or blanking plug cannot be secured without the valve assembly.

During installation, the end of the fairing with the arrows or triangular recess must always point forward (toward the bow) of the boat. It is also important to ensure the fairing is installed parallel to the keel to guarantee proper course-keeping.