Echonautics BT70L300-12 300w 40-75kHz Low CHIRP 12d Tilted Element Bronze TH

The Echonautics BT70L300-12 300w 40–75 kHz Low CHIRP 12° Tilted Element Bronze TH transducer is designed for serious anglers and boaters seeking precision fish-finding capabilities in freshwater and inshore environments. This bronze through-hull transducer provides the imaging clarity necessary to locate underwater structures, thermoclines, and target species at depths where traditional sonar may struggle.

With a power output of 300 watts and dual-frequency Low CHIRP technology spanning 40–75 kHz, this transducer offers exceptional range and detail across multiple water columns. The CHIRP sonar pulse minimizes interference, effectively separating baitfish from substrate clutter that typical narrow-band systems often fail to distinguish. The 12° tilted element design reduces dead zones directly beneath the hull while enhancing target separation along breaklines and drop-offs.

Constructed from corrosion-resistant bronze, this transducer is durable enough for inshore flats work or coastal freshwater systems prone to brackish conditions. It pairs seamlessly with Echonautics and compatible CHIRP-capable sonar systems rated for 40–75 kHz operation. Whether mapping a new lake or maintaining a reliable backup system on your primary vessel, this transducer meets the needs of both budget-conscious buyers and performance-driven boaters.