Perfect for coastal and offshore anglers, this Garmin GT21-TM transducer delivers both traditional sonar and CHIRP ClearVü scanning to give you clear, picture-like images of what’s beneath your boat. It’s optimized for depth and rough-water performance, providing superior target separation and crisp fish arches even in challenging conditions.
Built with a fast-response water temperature sensor, this unit ensures accurate readings and consistent clarity from shallow to deep waters.
Features:
Combines Traditional Sonar (50/200 kHz) and CHIRP ClearVü (260/455 kHz)
Optimized for depth and high-speed stability
Clear definition of fish and structure below the boat
Integrated temperature sensor
Transom or trolling motor mount design
30 ft. cable length
8-pin connector
Works with compatible Garmin chartplotters and fishfinders
Specifications:
Transmit Power: 600W (Traditional) / 500W (ClearVü)
Beamwidth: Traditional 40°/10° | ClearVü 2.0° x 51° @260kHz, 1.4° x 29° @455kHz
Max Depth: 1500 ft (Traditional) / 1000 ft (ClearVü)
Supported Transom Angles: 0°–70°
Material: Plastic
Includes:
8-pin transducer
Mounting hardware
Installation instructions
Duties and Taxes: Import duties, taxes, and charges are not included in the item price or shipping costs. These are the buyer's responsibility. Please check with your customs office for details before buying.
Shipping Charges: Additional charges are collected by the shipping company or upon item pickup. They are not additional shipping fees.
Merchandise Values: We do not undervalue merchandise or mark items as "gifts," as this is against US and international regulations.
Part Verification: Please check part numbers to ensure compatibility before purchasing. It’s your responsibility to confirm the application.
Multiple Items: We cannot reduce shipping on multiple items once purchased. Contact us for costs before buying.
Payment: Credit card payment is required within 3 days of purchase. Unpaid items will be relisted at the buyer’s expense unless we are notified.
Sales Tax: Florida shipments or local pickups are subject to 7% sales tax. We do not accept resale certificates.
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Refunds for Used Items: We offer refunds but encourage buyers to review item condition through provided photos. Request additional photos if needed.
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Keywords:
Garmin transducer, GT21-TM, ClearVü, CHIRP sonar, traditional sonar, fishfinder transducer, trolling motor mount, transom mount, depth finder, offshore fishing, saltwater transducer, marine electronics