Airmar B785C & B765C Series CHIRP Thru-Hull Transducers
The Airmar B785C and B765C series transducers are designed for high-performance fish detection and bottom profiling on smaller fiberglass or wood boats up to 9 m (30 feet). Constructed with durable bronze housings and equipped with advanced broadband ceramic arrays, they provide clear target separation and excellent detail over a range of depths and speeds. Both feature patented Xducer ID® technology for automatic sonar adaptation.
Models Available
B785C Medium CHIRP (80–130 kHz)
B765C Low/Medium CHIRP (Low 40–75 kHz / Medium 80–130 kHz)
B765C Low/High CHIRP (Low 40–75 kHz / High 130–210 kHz)
Key Features
Depth and fast-response water-temperature sensing
High-performance fairing enhances broadband efficiency at speeds over 30 knots
Bronze housing with urethane acoustic window
Beamwidths tailored for each frequency band optimize coverage and detail
Covers commercial and recreational fishing frequencies including 50, 88, 107, and 200 kHz
Suitable for planing and displacement hulls of fiberglass or wood
Xducer ID® technology for plug-and-play integration with CHIRP fishfinders
Model Comparison
Model
Frequency Range (kHz)
Beamwidth (°)
Power (W)
Max Depth (m / ft)
Weight
Housing
B785C
Medium 80 – 130
24° – 16°
600
274 / 900
2.5 kg / 5.5 lb
Bronze
B765C-LM
Low 40 – 75 / Medium 80 – 130
Low 32° – 21° / Med 24° – 16°
300 (low) / 600 (medium)
274 / 900
2.5 kg / 5.5 lb
Bronze
B765C-LH
Low 40 – 75 / High 130 – 210
Low 32° – 21° / High 15° – 9°
300 (low) / 600 (high)
366 (low) / 213 (high)
2.5 kg / 5.5 lb
Bronze
What’s in the Box
B785C
B785C-M-MM Thru-Hull transducer
High-performance fairing block
Anti-rotation bolt
Connector cable (Airmar 12-Pin MMC or Mix-N-Match)
B765C-LM
B75C-12-M-MM Thru-Hull transducer
High-performance fairing
Connector cable
B765C-LH
B765C-LH-MM Thru-Hull transducer and fairing block