Garmin GT30-THP SS Thru-Hull Pair DownVü/SideVü Scanning Transducer w/Temp f/Hull Deadrises 5°-25°

The Garmin GT30-THP Stainless Steel Thru-Hull Pair DownVü/SideVü Scanning Transducer with Temperature delivers dual-frequency sonar imaging that reveals structure, baitfish, and bottom composition both directly below and to the sides of your vessel. This 12-pin transducer pair combines 500W per element (1,500W total) output across CHIRP 455/800 kHz frequencies, engineered for hulls with deadrise angles between 5° and 25°. The stainless steel construction provides corrosion resistance essential for saltwater and brackish environments, while integrated fast-response temperature sensors supply real-time water data for pattern fishing and seasonal adjustments.

The dual-frequency CHIRP architecture allows simultaneous operation on 455 kHz and 800 kHz bands, providing both wide coverage and high-resolution detail scanning. The DownVü sonar cone displays a bird's-eye view of the water column directly beneath the hull—ideal for identifying suspended fish and pinpointing wreck structure. SideVü imaging extends your awareness perpendicular to the boat's path, revealing off-axis targets and edge structure that traditional forward-looking sonar misses. For hull deadrise angles in the 5°–25° range, proper transducer mounting angle ensures optimal signal transmission and eliminates beam distortion common in misaligned installations.

This transducer pair suits both weekend anglers seeking improved fish-finding capability and serious offshore fishermen who rely on advanced sonar for deep-water navigation and structure location. The 12-pin connector integrates with compatible Garmin chartplotters and multifunction displays, enabling seamless data integration with your existing navigation ecosystem. Stainless steel thru-hull design eliminates the maintenance burden of bronze transducers while delivering durability across tropical, coastal, and northern freshwater environments.