Airmar B150M – átmenő bronz halászháló-szonda 300W (95–155 kHz) 0°-os dőlésű elem + hőmérséklet (8 pólusú)

This CHIRP Airmar B150M transducer operates on a mid-frequency band, ranging from 95 kHz to 155 kHz.

No, this transducer with a bronze housing is recommended for fiberglass or wooden hulls. It must never be installed on a metal hull due to the risk of electrolytic corrosion.

This Airmar B150M transducer features a 0° tilted element. This means it is designed for hulls with a deadrise angle between 0° and 7° at the mounting location.

Yes, this Airmar B150M transducer is equipped with a fast-response water temperature sensor.

This transducer has an 8-pin connector, compatible with the appropriate Garmin devices.

To install this transducer, a 51 mm (2 in) diameter hole must be drilled from outside the hull. For foam-core fiberglass hulls, a 60 mm (2-3/8 in) hole is required from inside the hull.

Tilted-element CHIRP transducers offer several advantages:

The ceramic elements are tilted inside the housing to compensate for the hull’s deadrise angle, ensuring the beam is directed downward. They maximize echo returns and eliminate the need for a fairing block. Their low-profile design protrudes only 6 mm below the hull, making them ideal for towed or lifted boats. They provide superior resolution, precise fish detection, and better bottom-finding capability at high speeds.

The housing and nut of this depth sounder are made of bronze alloy. The cap is made of impact- and chemical-resistant plastic.

The ideal mounting location must meet the following criteria:

The water under the hull must be smooth, with minimal bubbles and turbulence.The transducer must remain continuously immersed in water.The transducer beam must not be obstructed by the keel or propeller shaft.Choose a location away from interference sources (propeller, other machinery, other sounders, cables).For CHIRP transducers, mount them in a cool, well-ventilated area away from the engine to prevent overheating.

Yes, it can be installed on a fiberglass core hull. However, additional steps are required to seal the hull core to prevent water ingress, using fiberglass and resin, or a cylinder, wax, tape, and epoxy casting resin.

The beam width (-3 dB) of this transducer varies with frequency:

Approximately 26° at 100 kHz.Approximately 20° at 130 kHz.Approximately 17° at 155 kHz.

The mid-range frequency provides a good balance: it allows deeper sounding than high frequencies while offering better resolution than low frequencies. It also provides a wider beam than high frequencies, increasing coverage under the boat and the chances of finding fish, with clear images even at higher boat speeds.

Yes, applying a water-based antifouling paint is mandatory on the transducer if the boat is used in saltwater, to prevent marine growth.

No, it is imperative never to install a metal housing (such as bronze) on a vessel equipped with a positive grounding system, as this can cause electrolytic corrosion.