Simrad Bronze HDI Thru Hull 50/200/455/800 Khz 9-PIN 20D

The Simrad Bronze HDI Thru Hull 50/200/455/800 kHz 9-PIN 20D transducer is built for serious anglers and boaters who demand multi-frequency sonar performance without premium pricing. This thru-hull transducer combines traditional CHIRP frequencies with advanced DownScan Imaging capability, delivering the fish-finding power needed for everything from shallow coastal flats to deep offshore structure. Whether you're targeting suspended gamefish or mapping hard bottom, this transducer eliminates the guesswork with simultaneous dual-frequency and proprietary imaging modes.

The Bronze HDI excels through its four-frequency architecture: 50 kHz and 200 kHz deliver traditional broad-cone sonar for deep structure and open water, while 455 kHz and 800 kHz DownScan frequencies create high-resolution side and forward-looking imagery for pinpoint target identification. The 20-degree transducer tilt angle minimizes spray and turbulence interference while maintaining optimal beam projection across vessel speeds. Temperature sensing is integrated, providing real-time water data critical for seasonal fish behavior prediction. The 33-foot cable with 9-pin connector ensures flexible installation on modern Simrad display units, and the rugged bronze housing resists saltwater corrosion and impact damage during rough conditions.

This transducer suits anglers operating center-console, bay, and offshore vessels seeking reliable multi-function sonar without duplicating hardware. Professional guides, tournament competitors, and recreational fishermen benefit from the clean installation profile and proven Simrad ecosystem integration. The thru-hull mounting requires proper hull penetration, making it ideal for fiberglass or composite constructions where through-mounting is feasible. Compatibility is confirmed with legacy and current Simrad Go, NSE, and Zeus display architectures—verify your specific display model before purchase for full feature access.