Airmar CHIRP In-Hull Transducers – M135C-M & M285C-HW with Raymarine 11-Pin Connectors.

CHIRP Frequency:

• Medium (M135C-M)

• High-Wide (M285C-HW)

Connector Type:

• Raymarine 11-Pin

---

Model Numbers

• M135C-M-11R

• M285C-HW-11R

---

Description

Designed for peak sonar performance with Raymarine systems, these in-hull CHIRP transducers from Airmar are ideal for serious anglers and boaters. The M135C-M provides reliable medium-frequency coverage with exceptional resolution, while the M285C-HW delivers crisp, wide-beam imaging for high-frequency detection—all without drilling into the hull exterior. Perfect for lifted or trailered fiberglass boats up to 25 feet.

---

CHIRP Options Overview

M135C-M – Medium CHIRP

• Frequency: 85–135 kHz

• Beamwidth: 24°–16°

• Depth Range: up to 1,500 ft (457 m)

• Power: 1 kW

• Depth-only

• Urethane, liquid-filled housing

• Adjustable deadrise: 2° to 20°

• Includes: M135C transducer, flange, MMC-11RHM cable

M285C-HW – High-Wide CHIRP

• Frequency: 150–250 kHz

• Beamwidth: Fixed 25°

• Depth Range: up to 700 ft (215 m)

• Power: 1 kW

• Depth-only

• Urethane, liquid-filled housing

• Adjustable deadrise: 2° to 20°

• Includes: M285C-HW transducer, MMC-11RHM cable

---

What’s in the Box

• Transducer (M135C-M or M285C-HW)

• M135 flange (with M135C-M only)

• Raymarine 11-Pin Mix-N-Match Cable (MMC-11RHM)