Raymarine B75MH 12DEG Pair Thru Hull Chirp Transducers
Raymarine B75MH 12DEG Pair Thru Hull Chirp Transducers — Product description
Unlock Crystal-Clear Underwater Views with Raymarine B75MH Thru-Hull CHIRP Transducers
Imagine gliding through deep offshore waters, spotting massive schools of tuna or pinpointing structure at extreme depths without missing a beat. The Raymarine B75MH 12-degree pair of thru-hull transducers delivers that edge for serious anglers and blue-water adventurers. Engineered for fiberglass and wood hulls, this bronze duo combines medium and high CHIRP frequencies to paint vivid, separation-rich images that traditional sonar just can't match.
With a robust 600-watt power output, these transducers probe up to 900 feet in medium frequency mode for wide-area scanning and 700 feet in high frequency for razor-sharp details on wrecks and bait balls. The 12-degree beam angle optimizes coverage for deadrise angles between 8 and 15 degrees, ensuring seamless integration on most planing hulls.
Superior CHIRP Technology for Tournament-Level Fishing
CHIRP sonar sweeps across broad frequency bands—80-130 kHz for medium range with beam widths from 24 to 16 degrees, and 130-210 kHz for high range narrowing to 15-9 degrees—creating unmatched target resolution. Unlike fixed-frequency sonars that blur fast-moving fish, CHIRP excels at distinguishing individual targets even in cluttered water columns.
- Deep Water Dominance: Track pelagics from surface to bottom without signal dropouts.
- Enhanced Separation: Isolate fish from thermoclines and debris for smarter decisions.
- Temperature Sensing: Built-in temp probe helps locate baitfish chasing current breaks.
Proven in brutal offshore conditions, this pair shrugs off pounding waves and corrosion, keeping your setup reliable when trophies are on the line.
Effortless Thru-Hull Installation for Peak Performance
Mounting thru-hull transducers demands precision to avoid air bubbles or distortion—get it right, and you'll harvest noise-free data every trip. Fair the housing to match your hull's deadrise for dead-on readings at speed.
Key tips from seasoned installers:
- Position forward of props and struts to minimize turbulence.
- Use the included Y-splitter for dual-transducer connectivity to your sounder module.
- Seal with marine-grade epoxy for a watertight bond that lasts seasons.
- Test at various speeds post-install to dial in gain settings.
The 33-foot cable run gives flexibility for clean routing to your helm, while the bronze construction laughs at saltwater abuse.
Why Serious Boaters Trust Raymarine B75MH for Offshore Excellence
Beyond specs, these transducers shine in real-world grit. Anglers report game-changing detail on swordfish migrations and bottom-hugging snapper, turning good days into limits. Rugged builds mean fewer breakdowns mid-chase, and the 2-year coverage backs your investment.
Pair them with compatible sounder modules for a sonar system that evolves with your boat—perfect for upgrading from basic 2D sonar to pro-grade imaging without hull surgery.
Maximize Longevity: Simple Maintenance for Enduring Clarity
Keep your B75MH pair humming like day one with these pro habits:
- Wipe the face clean after every outing to shed growth.
- Inspect cable connections seasonally for chafe.
- Winterize by flushing with fresh water in warm climates.
- Monitor for cavitation—adjust if speed-induced bubbles appear.
Consistent care ensures crisp returns trip after trip, saving you from costly rehabs.
Frequently Asked Questions
What hull types work best with Raymarine B75MH thru-hull transducers?
These transducers are optimized for fiberglass and wood hulls with deadrise angles from 8 to 15 degrees, delivering clean pings without distortion on planing boats.
How does CHIRP differ from conventional sonar on the B75MH?
CHIRP pulses across frequency bands for superior target ID and depth penetration, separating fish echoes far better than single-frequency sonars, especially in deep or murky water.
What's the maximum depth range for these transducers?
Expect up to 900 feet in medium CHIRP mode (80-130 kHz) and 700 feet in high mode (130-210 kHz), ideal for offshore blue-water pursuits.
Do I need special cables for the B75MH pair?
A Y-splitter cable is included to connect both transducers to your sounder module, simplifying dual-frequency operation from a single port.
Can these transducers handle high-speed planing?
Yes, the 12-degree beam and fairing block design minimize ventilation at speeds over 30 knots, maintaining solid bottom lock and fish arches.
How do I troubleshoot weak signals post-install?
Check hull alignment, ensure no air pockets under the housing, and verify gain settings match water conditions—common fixes for restored performance.
Are temperature readings accurate with the B75MH?
Absolutely—the integrated sensor provides reliable surface water temps, crucial for finding temp breaks where gamefish stage.
For more than 80 years, we‘ve been global leaders in high performance marine electronics for the recreational boating and light commercial marine markets. We continue to innovate and provide full electronic systems to boaters around the world. Our products are engineered for the tough marine environment and renowned for ease-of-use, rugged design and reliability. Our full range features chartplotters, fishfinders, radars, marine instruments, marine cameras, AIS units and VHF radios.
Raymarine T70065 Attributes
- Mounting Location: Thru-Hull Mount
- Depth: 900 Feet Maximum Depth At Medium Frequency/ 700 Feet Maximum Depth At High Frequency
- Power Rating: 600 Watt
- Frequency Range: 80 To 130 kHz Medium/ 130 To 210 kHz High CHIRP Frequency
- Supported Angle: 24 To 16 Degree Medium Beam Width / 15 To 9/ 8 To 15 Degree Deadrise
- Cable Length: 33 Feet
Raymarine T70065 Features & Benefits
- Professional CHIRP Sonar Transducers For Tournament And Offshore Blue Water Fishing With The Retired Raymarine CP450c Sonar Module
- High-Performance Products Proven In The Harshest Of Environments
- Built To Last Longer Life
- Rugged Design And Reliability
- Limited 2 Year Warranty
Raymarine T70065 Warranties
B75 LM Through Hull Transducer
Key Features
- Depth / Temp
- Through Hull
- Beam Angle = 12°
- Bronze
- CP450C Plug on Cable - Requires Y-Splitter Cable (Included)
- Power 600W
- Frequency: M=80-130 kHz, H=130-210 kHz
- Medium: 24° to 16° beamwidth
- High: 15° to 9° beamwidth
- Hull type: Fiberglass or wood
"RaymarineOur curated collection focuses on top brands from the marine, RV and outdoor market all in one place, always brand new gear and always at low prices."
SKU: NVN-1001361
MPN: T70065
UPC: 723193766521
Technical specifications
| Brand | Raymarine |
| Model | Raymarine B75MH 12DEG Pair Thru Hull Chirp Transducers |
| SKU / MFR# | 1001361 |
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Frequently asked questions
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