Advanced CHIRP Technology for Superior Depth Detection

The Airmar B175C-12-L Thru Hull Transducer is a high-performance, low-frequency CHIRP transducer designed for serious anglers and commercial fishing operations. With a broad frequency range from 40 kHz to 75 kHz and beamwidths from 32° to 21°, this transducer provides enhanced target resolution and superior depth penetration, making it an essential tool for identifying fish, underwater structures, and varying seafloor compositions.

Its fast-response water-temperature sensor ensures accurate environmental readings, while the CHIRP technology allows for detection down to 3,000 meters (10,000 feet) with up to ten times greater detail compared to traditional transducers. Whether for tournament fishing, professional charters, or commercial operations, this unit delivers the clarity and reliability needed for precise underwater imaging.

Precision Design for Optimal Performance

Engineered with a durable bronze housing, the Airmar B175C-12-L is built for long-term use in harsh marine environments. Its exclusive Xducer ID® technology ensures seamless integration and optimal performance with compatible marine electronics.

This model features a 12° fixed tilt, making it ideal for hull deadrises between 8° and 15°, ensuring accurate sonar returns without requiring a fairing block. It is compatible with fiberglass, wood, and metal stepped, planing, or displacement hulls, allowing installation flexibility across various boat designs.

Technical Specifications

• Frequency Range: Low CHIRP from 40 kHz to 75 kHz
• Beamwidth: 32° to 21°
• Bandwidth: 35 kHz total bandwidth coverage
• Depth Capability: Up to 3,000 m (10,000 ft)
• Boat Size Compatibility: Up to 8 m (25 ft)
• Hull Types: Fiberglass, wood, and metal hulls
• Installation Angle: Fixed 12° tilt for 8° to 15° hull deadrise
• Transducer Housing: Bronze
• Acoustic Window: Urethane
• Weight: 2.7 kg (6 lb)
• Engine Compatibility: Suitable for all propulsion types

Key Features at a Glance

• High-performance low-frequency CHIRP for deep-water detection
• Enhanced fish and structure identification with improved resolution
• Bronze thru-hull housing for durability in marine conditions
• Fast-response water-temperature sensor for real-time data
• Covers the popular 50 kHz fishing frequency and additional bandwidth
• Exclusive Xducer ID® technology for seamless integration
• Ideal for commercial fishing, tournament angling, and charter operations