The ONWA TGM50/200B-12L is a professional-grade, heavy-duty thru-hull transducer designed for high-performance echo sounding. Unlike standard plastic transducers, this model features a rubber-molded design, making it exceptionally durable and resistant to the extreme pressures and corrosive nature of saltwater environments.

The TGM50/200B-12L is a 1kW Dual-Frequency powerhouse. It operates at both 50kHz and 200kHz, allowing mariners to switch between deep-water penetration and high-detail shallow-water scanning. Its rubber construction provides excellent mechanical strength and helps dampen internal ringing, resulting in clearer “echoes” and better target separation.

This model is typically paired with ONWA’s high-power fishfinders, such as the KF-1067 or the K-Fish 12, and is widely used by commercial fishing vessels that require reliable seabed discrimination at significant depths.