Airmar Xsonic TM275LH w-Chirp Dual-Channel Transducer

Engineered for serious anglers and demanding commercial operations, the Airmar Xsonic TM275LH with CHIRP is a rugged, dual-channel fish finder transducer that delivers crisp bottom mapping and confident target discrimination from the shallowest tidal flats to the deepest offshore waters. Its two-channel CHIRP design seamlessly bridges high-resolution shallow water detail with dependable deep-water bottom tracking, making it an all-season workhorse for boats 8 m (25 ft) and up.

Why dual-channel CHIRP matters

• Low CHIRP 42–65 kHz targets bottom structure and fish holds at depths up to 914 m (3,000 ft), giving you reliable returns in challenging offshore conditions.
• High CHIRP 150–250 kHz delivers high-resolution detail in the upper water column, helping you identify weed lines, thermoclines, and suspended targets with precision.
• Eight broadband ceramic elements maximize signal strength and clarity across the wide bandwidth for clean, actionable echoes in rough seas.
• Switches between deep bottom tracking and shallow water discrimination without swapping gear, so you stay focused on the bite.

Built to endure and simplify installation

• A durable urethane housing paired with a stainless steel bracket stands up to long days on the water and harsh marine environments.
• Easy integration on aging vessels with TM258 & TM260 bracket compatibility, unlocking modern CHIRP capabilities without a full helm rework.
• Dual Black nine-pin connectors with a 10 m (33 ft) cable streamline routing and installation on various hull types.
• 1 kW total output ensures strong, near-phantom echoes for deep-water bottom mapping and trophy-target detection even in chop and current.

Built-in data you can act on

• A built-in temperature sensor adds real-time context to trolling, drifting, and anchoring decisions—helping you time bites and optimize rigging tactics.
• Approximately 25° beamwidth across both frequencies supports reliable target separation and bottom discrimination in varied sea states.

Ideal use scenarios

The TM275LH is designed for sportfishing boats pursuing bottom structure and pelagic life in deep chop, as well as commercial operators requiring dependable bottom mapping and fish-holding density readings across diverse conditions. Whether you’re patrolling shelf edges, locating ledges and drop-offs, or mapping seabed contours for charter operations, this transducer delivers consistent, actionable data.

How it fits with other gear

• Compatibility—Suitable for fibreglass, wood, and metal hulls; optimized for integration with CHIRP-enabled chartplotters and sounders.
• Recommended pairings—Pair with NSSevo3 or the BSM-3 broadband sounder module to maximize the CHIRP spectrum across the full depth range.
• Upgrade path—Turn legacy vessels into CHIRP-enabled platforms without a complete hull rethink, preserving existing hardware while unlocking modern performance.

What makes this transducer stand out

What sets the TM275LH apart is its combination of rugged build, dual-channel CHIRP versatility, and practical, real-world features. From the water temperature readout that refines line tactics to the robust 1 kW power and 25° beam that deliver dependable bottom mapping and target clarity in less-than-ideal conditions, this transducer is built for the realities of fishing and commercial use on diverse hulls. It’s not just about better pictures on the screen—it’s about more bites, smarter tactics, and safer navigation in demanding seas.

Technical snapshot

Frequency ranges: Low CHIRP 42–65 kHz (deep water) and High CHIRP 150–250 kHz (shallow/high-resolution detail)

Beams: ~25° beamwidth on both channels

Elements: Eight broadband ceramic elements

Power: 1 kW

Cable: 10 m (33 ft) dual Black nine-pin connectors

Mounting: Transom mount with urethane housing and stainless bracket

Hull compatibility: Fibreglass, wood, and metal hulls

Temperature sensor: Built-in sea-surface temperature

With the TM275LH, you gain a robust CHIRP transducer that scales from shallow inshore dives to deep offshore runs, delivering precise mapping, smarter fishing decisions, and a reliable foundation for your marine electronics ensemble.