Airmar B75M single-channel CHIRP bronze thru-hull transducer, 600 W, operating at 80–130 kHz. Provides clear mid-band target separation, stable bottom tracking and fast temperature sensing. Includes 12 m cable with 10-pin connector for Furuno systems. Read more.
The AIRMAR B75M is a bronze single-channel CHIRP depth and temperature thru-hull transducer, ideal for boaters who need reliable mid-band CHIRP performance in a compact housing. Operating in the 80–130 kHz frequency range with 600 W of power, it provides strong mid-frequency coverage, improved fish arches and clear bottom tracking, outperforming traditional 50/200 kHz sensors. Its CHIRP sweep delivers sharper target separation in mid-depth coastal waters, making it well-suited for recreational fishing, cruising and reliable depth surveying.
The rugged bronze thru-hull body ensures long-term resistance to corrosion and stable acoustic coupling through the hull. Integrated depth and fast-response temperature sensing, together with a 12 m cable and 10-pin connector, allows seamless integration with compatible Furuno CHIRP modules and TZtouch sounders. The compact design of the B75M makes it easier to install on small to mid-size vessels without requiring a large fairing block.
Single-channel CHIRP (80–130 kHz): Provides strong mid-frequency coverage with improved clarity and detail.
600 W output: Suitable for coastal and mid-depth fishing applications.
Enhanced target separation: Clearer fish arches and better definition of bottom transitions.
Bronze thru-hull housing: Durable construction for long-term marine use.
Depth & temperature sensing: Integrated fast-response sensors.
10-pin connector: Direct plug-and-play compatibility with Furuno systems.
12 m cable: Marine-grade cable suited for flexible routing.
B75M CHIRP Transducer
Single-channel mid-band CHIRP ceramic element housed in a bronze thru-hull shell with integrated depth and temperature sensing.
Thru-Hull Mounting Hardware
Bronze housing, backing nut and sealing components designed to ensure a secure, watertight installation.
10-Pin Cable (12 m)
Factory-attached cable with Furuno-standard 10-pin plug for direct device integration.
Power: 600 W
Frequency: 80–130 kHz (Single-channel CHIRP)
Functions: Depth, temperature
Material: Bronze
Mounting: Thru-hull
Connector: 10-pin
Cable length: 12 m
Recommended use: Coastal fishing, cruising, mid-depth coverage
Supported systems: Compatible with Furuno CHIRP-enabled sounders and TZtouch displays using a 10-pin input.
Function support: Depth and temperature.
Limitations: Not intended for wide-beam or dual-channel CHIRP.
B75M bronze CHIRP thru-hull transducer
Mounting hardware and sealing components
12 m cable with 10-pin connector
Installation documentation
Install the transducer flush to the hull surface to ensure clean water flow and optimal CHIRP performance. Avoid strakes, steps or turbulent areas that may cause aeration. Use correct marine sealant for a watertight installation. Route the cable through a waterproof pass-through and connect directly to the 10-pin CHIRP port, ensuring separation from high-interference wiring.
