The Garmin GT21 Transom or Through-Hull Transducer is engineered to deliver exceptional sonar performance for both traditional 2D and ClearVü CHIRP imaging. This versatile transducer is available in two mounting styles to suit various boating needs:
- Transom Mount (GT21-TM): Ideal for boats with a transom installation, this model offers straightforward mounting and is optimized for significant depths and challenging conditions.
- Through-Hull Mount (GT21-TH): Designed for boats with a through-hull installation, this model provides enhanced performance and is suitable for hull deadrises up to 25 degrees.
Key Features:
- Dual Sonar Capabilities: Combines traditional 2D CHIRP sonar with ClearVü CHIRP scanning sonar for comprehensive underwater imaging.
- High Power Output: Delivers 600W in traditional 2D mode (50/200 kHz) and 500W in ClearVü CHIRP mode (260/455 kHz).
- Built-in Temperature Sensor: Equipped with a fast-response temperature sensor for real-time water temperature readings.
- Durable Construction: The through-hull model features a stainless steel stem for enhanced durability and resistance to corrosion.
Technical Specifications:
- Frequency Range: Traditional 2D Sonar: 50/200 kHz; ClearVü CHIRP Sonar: 260 kHz (245-275 kHz) and 455 kHz (445-465 kHz).
- Beamwidth: Traditional 2D Sonar: 40°/10°; ClearVü CHIRP Sonar: 260 kHz: 2.0° x 51°; 455 kHz: 1.4° x 29°.
- Maximum Depth: Traditional 2D Sonar: 1,500 feet; ClearVü CHIRP Sonar: 1,000 feet.
- Cable Length: 30 feet.
- Connector: 8-pin.
- Mounting Style: Available in transom mount (GT21-TM) and through-hull mount (GT21-TH).
Materials:
- Transom Mount Model (GT21-TM): Constructed with durable materials suitable for transom installations.
- Through-Hull Mount Model (GT21-TH): Features a stainless steel stem for enhanced durability and resistance to corrosion.
Compatibility Information:
- Transom Mount Model (GT21-TM): Compatible with Garmin devices that support 8-pin transducers.
- Through-Hull Mount Model (GT21-TH): Compatible with Garmin devices that support 8-pin transducers.
In the Box:
- Transom Mount Model (GT21-TM): 8-pin transducer, mounting hardware, installation instructions.
- Through-Hull Mount Model (GT21-TH): 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware, installation instructions.
Additional Information:
Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.
