XSONIC Airmar SS75H (20°)

The XSONIC Airmar SS75H (20°) through-hull CHIRP transducer is a 600 W model designed for precise depth and water temperature detection. This unit features a fixed 20° tilted element, optimized for hulls with a deadrise angle between 16° and 24°. It operates on a high CHIRP frequency range (130–210 kHz) and includes a 9-pin connector with a 10 m (33 ft) cable. The housing is made of stainless steel.

The XSONIC Airmar SS75H (20°) transducer uses CHIRP high-frequency technology (130-210 kHz). This technology delivers 5 to 10 times the resolution and detail of traditional transducers, enabling clear distinction between baitfish, gamefish, and underwater structures.

The XSONIC Airmar SS75H (20°) fishfinder’s high-frequency CHIRP technology (130–210 kHz) delivers 5 to 10 times the resolution and detail of conventional depth sounders. This improves target separation, making it easier to identify fish schools and distinguish fish from underwater structures. Its variable beam width (15° to 9°) ensures precise targeting.

The stainless steel housing of the XSONIC Airmar SS75H (20°) transducer is compatible with all hull types: fiberglass, wood, and metal. For metal hulls, it is recommended to use the supplied isolation ring to prevent electrolytic corrosion.

The XSONIC Airmar SS75H (20°) transducer has a transmit power of 600 W.

The XSONIC Airmar SS75H (20°) transducer has a fixed 20° tilted element. It is specifically optimized for hulls with a deadrise angle between 16° and 24° at the mounting location. This ensures the beam is horizontally oriented for maximum echo reception.

To measure the deadrise angle of your hull at the chosen mounting location, you can use an angle gauge or a digital level. It is essential that the tilt angle of the transducer matches this angle for optimal performance.

The arrow on the top of the transducer must point toward the keel or the centerline of the boat. This orientation is critical to align the internal element of the transducer with the deadrise angle of your hull.

The required hole diameters depend on your hull material:

For fiberglass or wooden hulls: 70mm (2-13/16") for the outside of the hull. If the hull is fiberglass with a core (cored fiberglass), an 80mm (3-1/8") hole is required for the inside. For metal hulls: 79mm (3-1/8") for the outside of the hull.

No, it is not recommended to install the CHIRP transducer in the engine compartment or any other hot location. CHIRP transducers generate more heat than traditional transducers, and overheating could lead to transducer failure. It is recommended to mount it in a cool, well-ventilated area.

When selecting the mounting location, ensure that:

The sensor is not inline or near water inlets/outlets, strakes, fittings, or other hull irregularities that could disrupt water flow.The boat will not be supported by the transducer when on the trailer, launching, lifting, or in storage to avoid damaging the transducer face.Under-hull water flow must be smooth, with minimal bubbles and turbulence.The depth sounder beam is not obstructed by the keel or propeller shafts.The location is away from interference sources (propellers, engines, other sounders, cables).

To protect your depth sounder from marine fouling, you can apply the Foulfree coating. This coating is Airmar-certified and does not affect the depth sounder's performance. It is non-toxic, durable (up to two years of effectiveness), and creates an ultra-smooth surface to which marine growth cannot adhere.

Yes, the use of a water-based antifouling paint is mandatory if the transducer is installed in saltwater. This helps prevent the buildup of marine organisms that could impair sonar performance.

No, it is essential never to use solvents. Cleaners, fuels, sealants, paints, and other products may contain solvents that could damage plastic parts, particularly the face of the transducer. Use a mild household detergent or a weak solvent like alcohol for cleaning.

Yes, the XSONIC Airmar SS75H (20°) transducer is equipped with a water temperature sensor. It provides depth and temperature data.

The XSONIC Airmar SS75H (20°) transducer is supplied with a 9-pin connector and a 10-metre (33-foot) cable.

It is critical to always operate the CHIRP transducer in the water. Using the transducer outside of water can cause overheating of the transducer element, which may result in permanent failure of the transducer.

For boats capable of speeds above 25 knots (29 MPH), it is recommended to carefully review the installation location and operational results of similar boats before proceeding. Optimal placement is crucial to keep the transducer in constant contact with the water and minimize turbulence at high speed.

No, Airmar certifies that applying the Foulfree coating to its transducers does not result in any loss of performance. This coating is designed to protect the transducer from fouling without compromising its ability to detect depth and temperature.

The XSONIC Airmar SS75H (20°) transducer is specifically designed for hulls with a deadrise angle between 16° and 24°. Its fixed 20° tilted element ensures a horizontal beam orientation, which is critical for optimal echo reception and accurate depth and temperature detection performance.

Regarding hull material compatibility, its stainless steel housing makes it compatible with all hull types:

FiberglassWoodMetalFor installation on a metal hull, it is mandatory to use the provided isolation ring to prevent electrolytic corrosion and ensure a secure installation.