Airmar B744V – 600 W (50/200 kHz) bronz átmenőszonda sebesség- és hőmérséklet-érzékelővel – 8 pólusú csatlakozó

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

The Airmar B744V transducer operates on two frequencies:

50 kHz: for wide coverage and detection of fish schools. 200 kHz: for high-resolution imaging of bottom structures and better target separation.

The Garmin Airmar B744V transducer is a multisensor transducer providing 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 transducer enables depth detection down to:

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

The Airmar B744V transducer offers the following beam angles:

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

The Airmar B744V transducer delivers reliable speed-through-water measurements even at high speeds, with excellent performance up to 30 knots (34 MPH). This is particularly beneficial for planing hulls where signal stability is critical.

The Airmar B744V transducer housing 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 equipped with an 8-pin connector. This information is essential to ensure compatibility with your Garmin fishfinder or multifunction display.

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

During installation, the following precautions must be taken:

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 transducer 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 transducer. Never use solvents, cleaners, fuel, or products containing solvents that could damage plastic parts. Never sand with a machine or clean the transducer 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 transducer must remain continuously submerged in water at all speeds. The transducer beam must not be obstructed by the keel or propeller shaft. Select a location away from interference sources such as propellers, shafts, other machinery, other depth sounders, 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 critical to avoid the following locations:

On the centerline or near water intakes or discharges.Behind seams, fittings, or hull irregularities that could disrupt water flow.Where the boat may be supported during towing, launching, hauling, or storage to prevent damage to 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 3mm (1/8") between it and the hull. The anti-rotation bolt of the fairing is mandatory and must be installed. All O-rings of the impeller insert must be intact and properly lubricated with the supplied silicone grease before insertion. The impeller 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 essential to lubricate all the O-rings of the impeller insert. They must be intact and properly lubricated with the supplied silicone grease to ensure a watertight seal. Attempting to install the insert without adequate lubrication can damage the O-rings and prevent full insertion and proper sealing.

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

During installation, the end of the fairing with the arrows or triangular cutout 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 maintain proper course-keeping.