Garmin GT21-TH S/S Thru-Hull ClearV CHIRP, 600W 50/200kHz Traditional, 500W 260 455 ClearV CHIRP

The GT21-TH transducer is the perfect solution for coastal and offshore anglers seeking top-tier sonar performance and durable construction. Designed with both traditional sonar and CHIRP ClearVü scanning sonar, this thru-hull mount transducer delivers exceptional clarity and precision, ensuring you never miss a bite or underwater structure.

Superior Sonar Technologies

Experience advanced underwater imaging with the GT21-TH’s dual sonar systems:

• CHIRP ClearVü Scanning Sonar: Operating at 260/455 kHz with a power rating of 500 W, the CHIRP ClearVü provides high-resolution scanning to reveal detailed underwater structures and enhance target separation.
• Traditional Sonar: Featuring operating frequencies of 50/200 kHz and a power rating of 600 W, the traditional sonar ensures clear and crisp fish arches, making it easier to locate and track fish.

Durable and Reliable Construction

Built to withstand the rigors of marine environments, the GT21-TH features a stainless steel stem that resists corrosion and wear. Its thru-hull mounting style is ideal for boats with hull deadrises of less than 25 degrees, providing a secure and stable installation that minimizes vibrations and ensures consistent performance.

Comprehensive Package Includes

The GT21-TH provides everything you need for a hassle-free installation:

• 8-pin transducer with stainless steel stem
• Fairing block for streamlined water flow
• Isolation plate and bushings to reduce noise
• Complete mounting hardware
• Detailed installation instructions

Follow the included installation guide carefully to ensure proper setup and avoid potential damage to your vessel.

Additional Features

Enhance your fishing experience with the GT21-TH’s built-in fast-response temperature sensor, allowing you to monitor water temperature in real-time. This feature helps you make informed decisions about bait placement and fishing strategies based on current water conditions.

Product Specifications

Feature	Details
Temperature Sensor	Yes
Speed Included	No
Pins	8
Imaging	Standard/Down
Cable Length	30' (feet)
Mounting Style	Thru-Hull
Chirp	Non Traditional
Box Dimensions	6"H x 14"W x 17"L
Weight	8.4 lbs
UPC	753759152833

Safety Information

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, visit P65Warnings.ca.gov.

Owner's Manual

Download the Owner's Manual (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.