Airmar Transom‑Mount CHIRP Transducer Series (Mix‑N‑Match Plug Models)
Airmar’s TM‑Series CHIRP transducers redefine performance for inshore, offshore, and deep‑water anglers. Built for CHIRP‑ready sounders, these transducers offer superior target resolution, depth penetration, and wide under‑boat coverage. Each model features urethane housing, a stainless‑steel mounting bracket, and exclusive Xducer ID® technology for auto‑recognition and simplified installation.
Models Available
TM185C‑M (Medium CHIRP)
TM185C‑HW (High Wide CHIRP)
TM265C‑LH‑MM (Low/High CHIRP)
TM275C‑LHW‑MM (Low/High Wide CHIRP)
Key Features
CHIRP frequency coverage from 42 kHz to 250 kHz (depending on model)
1 kW broadband power with fast‑response temperature sensor
Improved target separation and bottom definition across all depths
Robust urethane construction with stainless mount for durability
Transom angle fit: 3° to 28°
Compatible with fiberglass, wood, and metal hulls
Xducer ID® technology for automatic echosounder setup
Mix‑N‑Match connectors support Simrad, Garmin, Raymarine, and Humminbird sounders
Model Comparison
Model
Frequency Range (kHz)
Beamwidth (°)
Max Depth (m / ft)
Power
Best Use
Acoustic Window
TM185C‑M
85 – 135
16 – 11 approx.
457 / 1,500
1 kW
Mid‑depth, offshore and freshwater angling
Urethane
TM185C‑HW
150 – 250
25 constant
152 / 500
1 kW
Inshore and pelagic, wide coverage
Urethane
TM265C‑LH‑MM
Low 42–65 / High 130–210
Low 25–16 / High 10–6
1,200+ / 4,000+
1 kW
Deep‑water offshore coverage
Urethane
TM275C‑LHW‑MM
Low 42–65 / High 150–250
Low 25–16 / High 25 constant
900 / 3,000
1 kW
Wide‑beam dual‑band deep coverage
Urethane
Technical Highlights
TM185C‑M: Balanced performance for mid‑range depth and clarity
TM185C‑HW: Constant wide beam for twice the under‑boat coverage
TM265C‑LH: Dual CHIRP low/high for deep precision and target contrast
TM275C‑LHW: Dual CHIRP wide‑beam coverage for high‑resolution returns