Discover the power of advanced sonar detection with the TM275LH-W, a robust urethane transom-mounted CHIRP transducer designed for serious anglers and professional operators on vessels starting at 8 meters. This dual-channel powerhouse delivers unmatched clarity by blending low-frequency CHIRP for pinpoint bottom tracking in depths up to 4000 feet with high-frequency CHIRP maintaining a consistent wide-angle beam for superior target separation closer to the surface and in shallower waters.
What sets this transducer apart is its ability to paint a vivid picture of the underwater world, whether you're chasing trophy fish offshore or navigating structure-filled shallows. The integrated high-precision temperature sensor provides real-time sea surface data, helping you make informed decisions on bait selection and fish behavior patterns influenced by water conditions.
Effortless Transom Installation for Lasting Performance
Installing the TM275LH-W is straightforward, thanks to its durable stainless steel bracket that retrofits to popular existing mounts. Suitable for fiberglass, wood, or metal hulls, it positions perfectly at the transom for optimal water flow and minimal drag.
Pro Tips for Peak Results:
- Ensure the deadrise angle matches your hull (typically 0-20°) to avoid cavitation.
- Route the 33-foot cable away from electrical interference sources like engines or radios.
- Secure with marine-grade sealant for a watertight fit, and test at varying speeds to fine-tune the angle for bubble-free operation.
Once mounted, you'll notice immediate improvements in sonar returns, even at planing speeds up to 30 knots.
Versatile Performance Across Fishing Scenarios
For sportfishing enthusiasts targeting billfish, tuna, or snapper in deep blue water, the low CHIRP channel reveals wrecks, drop-offs, and ledges with precision. Switch focus to inshore pursuits like redfish or flounder, and the wide high beam uncovers hidden gems in grass beds or oyster bars.
Commercial operators value its reliability on larger vessels, where consistent bottom lock and fish counting capabilities streamline operations. Pair it with broadband sounder modules for enhanced processing power, and you'll unlock features like motion compensation for cleaner screens in rough seas.
Technical Specs at a Glance
| Attribute |
Details |
| Mounting |
Transom Mount (urethane housing) |
| Connector |
9-Pin |
| Max Depth |
4000 Feet |
| Beam Angle |
Low: 25-16° | High: 25° Constant |
| Cable Length |
33 Feet |
| Sensor |
High-Precision Water Temperature |
Long-Term Reliability and Care
Built to withstand harsh marine environments, the TM275LH-W features a tough urethane housing resistant to UV, impact, and biofouling. Regular maintenance keeps it performing like new:
- Wipe clean after each trip to remove salt and algae.
- Inspect the bracket for corrosion and tighten as needed.
- Store in a cool, dry place during off-seasons to preserve ceramics.
With proper care, it delivers years of dependable service, giving you confidence on every outing.
Frequently Asked Questions
What hull types is the TM275LH-W compatible with?
It works seamlessly on fiberglass, wood, and metal hulls from 8 meters and up, thanks to its versatile transom mount design.
How does the wide beam angle benefit fishing?
The constant 25° high-frequency beam provides broader coverage and better fish target resolution in the upper water column and shallows, reducing the need to constantly adjust course.
Can this transducer handle high boat speeds?
Yes, it maintains clear sonar readings at speeds up to 30 knots when properly installed and angled to minimize air bubbles.
Does it include a temperature sensor?
Absolutely, it features a high-precision sensor for accurate surface water temperature readings, crucial for locating baitfish and predicting fish activity.
What's the difference between low and high CHIRP channels?
Low CHIRP (42-65 kHz) penetrates deeper for bottom structure (up to 4000 ft), while high CHIRP (150-250 kHz) offers sharp detail for fish ID in shallower depths.
Is installation DIY-friendly?
Yes, with basic tools and following hull-specific guidelines, most boat owners can install it themselves. It even retrofits to common bracket types.
How many ceramic elements does it have?
Eight internal broadband ceramics ensure strong signal strength and wide frequency sweeps for professional-grade performance.
The TM275LH-W is a urethane, transom-mounted CHIRP transducer, ideal for sport fishing and commercial vessels 8 Meter and up. This dual-channel transducer combines Low CHIRP frequencies to accurately track the bottom in deep water, with High CHIRP at a constant 25 Degree beam width for the best resolution and coverage in the upper water column and in shallower depths. The TM275C-LHW CHIRP transom-mount transducer has 8 internal, broadband ceramic elements. The low-frequency can be chirped from 42 to 65 Kilohertz while the high-frequency chirps from 130 to 210 Kilohertz. The beamwidth is a wide 25 Degree across all frequencies. Also high-precision water-temperature sensor for accurate sea-surface temperature readings.
The TM275LH-W is a urethane, transom-mounted CHIRP transducer, ideal for sportfishing and commercial vessels 8 m (25 ft) and up. This dual-channel transducer combines Low CHIRP frequencies to accurately track the bottom in deep water, with High CHIRP at a constant 25x beam width for the best resolution and coverage in the upper water column and in shallower depths.
Power supply: unspecified, installation: tail plate, TM275LH-W is a urethane, tail plate mounted CHIRP transducer, very suitable for sport fishing and commercial boats of 8 m (25 feet) and above. This ...
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