Garmin GT21-TH Stainless Steel Thru-Hull Sonar Transducer with ClearV and Traditional CHIRP

GT21-TH

Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearV scanning sonar with a stainless steel stem, this thru-hull mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat.

The CHIRP ClearV element has a power rating of 500 W and operating frequencies of 260/455 kHz. The traditional sonar has a power rating of 600 W and operating frequencies of 50/200 kHz. It includes a built-in fast-response temperature sensor. For hull deadrises less than 25 degrees.

GT21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

The Garmin GT21-TH is a durable and high-performance thru-hull transducer designed for coastal and offshore fishing enthusiasts who require reliable sonar imaging. Crafted with a stainless steel stem, this transducer ensures secure installation and resistance to harsh marine environments. It features both traditional sonar and CHIRP ClearV scanning sonar capabilities, delivering crisp, clear fish arches and detailed underwater structure views for better target separation and fishing success. The CHIRP ClearV element operates at 260/455 kHz with a power rating of 500 W, ideal for high-resolution imaging of fish and structures beneath the boat. The traditional sonar operates at 50/200 kHz with a 600 W power rating, providing versatile depth and target detection for various fishing conditions. Equipped with a built-in fast-response temperature sensor, it offers real-time water temperature data, enhancing fishing strategies. This transducer is suitable for hull deadrises less than 25 degrees and includes an 8-pin transducer with necessary mounting hardware, fairing block, isolation plate, and bushings. Proper installation following the provided instructions is essential to avoid hull damage and ensure optimal performance. Garmin’s GT21-TH is an excellent choice for anglers seeking dependable, high-quality sonar imaging for offshore fishing trips, combining advanced technology with robust construction to withstand demanding marine environments. Please note that this product contains chemicals known to the State of California to cause cancer, birth defects, or reproductive harm; for more details, visit P65Warnings.ca.gov.

Features:

• Durable stainless steel stem for reliable mounting

• Traditional sonar with 600 W power at 50/200 kHz for versatile depth detection

• CHIRP ClearV scanning sonar with 500 W power at 260/455 kHz for high-resolution imaging

• Built-in fast-response temperature sensor for real-time water temperature data

• Suitable for hull deadrises less than 25 degrees

• Includes mounting hardware, fairing block, isolation plate, and bushings for easy installation