Built for serious offshore work, the Airmar PM411C-LWM is the pocket-mount transducer that tournament billfish captains rely on when depth and target separation matter most. A sweeping 40° beamwidth delivers exceptional water-column coverage, while the combined low-to-medium frequency range squeezes 70 kHz of total bandwidth from a single unit — covering the popular 50 kHz and 200 kHz fishing frequencies and everything in between. Curved-edge geometry suits wet-box installation, and the seamless SEALCAST™ urethane housing is built to last in continuous saltwater immersion.

Specifications:

• Power output: 2 kW
• Low frequency range: 40–60 kHz
• Low-frequency beamwidth: 40° (ultra-wide coverage)
• Low-frequency maximum depth: 1,219 m (4,000 ft)
• Medium frequency range: 80–130 kHz
• Medium-frequency beamwidth: 13° to 8°
• Medium-frequency maximum depth: 914 m (3,000 ft)
• Total bandwidth: 70 kHz from a single transducer
• Covers popular fishing frequencies of 50 kHz and 200 kHz plus full bandwidth range
• Sensing: depth and fast-response water temperature
• Curved-edge design for wet-box installation
• Mounting style: custom pocket, keel, or welded-tank mount
• Housing: SEALCAST™ seamless urethane construction
• Also available as thru-hull external mount (R409LWM)
• Patented Xducer ID® technology
• Connector: none
• Manufacturer part number: 41-806-1-02

Resources:

• Installation Guide (PDF)
• Product Brochure (PDF)

Note: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.