The Airmar xSonic M135M operates across an 85–135 kHz medium CHIRP frequency range, delivering 1 kW of power and 50 kHz of total bandwidth from a single transducer. It resolves fish targets at depths to 457 m (1,500 ft) while maintaining sharp bottom detail and fish-target separation from shallow to mid-depth water. The in-hull mounting system uses a plastic base aligned to the hull centerline, filled with non-toxic antifreeze, and adjusted for deadrise offset so the beam fires straight down — no hull penetration, no exterior protrusions. That makes this an ideal choice for trailered or lifted vessels up to 11 m (36 ft) with solid fiberglass hulls. Patented Xducer ID® technology is built in, and the unit covers popular fishing frequencies of 88 and 107 kHz plus the full bandwidth between them.

Specifications:

• Frequency Range: 85–135 kHz (medium CHIRP)
• Beamwidth: 16° to 11°
• Power Output: 1 kW
• Total Bandwidth: 50 kHz
• Maximum Depth: 457 m (1,500 ft)
• Recommended Boat Length: Up to 11 m (36 ft)
• Hull Material: Solid fiberglass only
• Hull Deadrise: Up to 22°
• Acoustic Window: Urethane
• Transducer Element: One broadband ceramic assembly
• Connector: 9-Pin
• Weight: 4.2 kg (9.2 lb)
• Includes: Adjustable plastic mounting base
• Hull Compatibility: Planing and displacement hulls
• Technology: Patented Xducer ID®
• Also available as transom (TM185M), thru-hull low-profile (B175M), and thru-hull with fairing (B285M) mounts

Resources

• Owner's Manual (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.