Airmar R109C-LH 2kW Thru-Hull Transducer

The Airmar R109C-LH 2kW Thru-Hull Transducer is the workhorse choice for serious anglers and boaters who demand reliable, real-time sonar performance in freshwater and light saltwater environments. This left-hand mounting transducer delivers the clarity and precision needed to locate structure, drop-offs, and fish-holding zones with confidence. Whether you're targeting bass in a lake, scanning for walleye on a reservoir, or exploring shallow bays, this transducer integrates seamlessly with modern fish-finding electronics to give you the underwater intelligence that separates consistent catches from guesswork.

Built to Airmar's rigorous standards, the R109C-LH operates at 2 kilowatts of transmit power, providing strong signal penetration and detailed bottom definition even in weedy or structure-rich water. The thru-hull design mounts directly into your hull, eliminating the performance loss and drag associated with transom-mounted units, and the left-hand configuration accommodates port-side installation preferences common on many hull designs. The transducer's durable construction withstands the vibration, salt spray, and temperature swings encountered during long days on the water, while its weight of just 1 pound keeps installation simple and balanced.

This transducer suits both recreational anglers upgrading older sonar systems and professional guides who rely on consistent performance across multiple trips per season. Installation requires hull penetration and proper sealing, so plan the work accordingly and verify compatibility with your existing sonar head unit before ordering. The R109C-LH pairs with Airmar-compatible fish finders from major manufacturers, ensuring years of dependable depth, temperature, and fish-finding data to refine your tactics and maximize your time on the water.