Airmar B150M – bronzinė skersinė sonda 300W (95-155kHz) su 0° pasvirimo elementu + temperatūros jutiklis – (8 kontaktų)

This Airmar B150M CHIRP transducer operates in the 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 depth sounder is equipped with an 8-pin connector, compatible with the relevant Garmin devices.

To install this transducer, drill a 51 mm (2 inches) hole from the outside of the hull. For foam-core fiberglass hulls, a 60 mm (2-3/8 inches) hole is required from the inside of the hull.

CHIRP tilted-element transducers provide 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 offer superior resolution, precise fish detection, and better ability to find the bottom 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 depth sounder must remain continuously immersed in water.The depth sounder beam must not be obstructed by the keel or propeller shaft.Choose a location away from interference sources (propeller, other machinery, other fishfinders, cables).For CHIRP depth sounders, mount it in a cool, well-ventilated area away from the engine to prevent overheating.

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

The -3 dB beam width of this depth sounder varies with frequency:

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

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

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

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