Airmar - B175C-12-L 12 Deg Tilt Low CHIRP Mix-N-Match Thru Hull Transducer

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

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.