Garmin
Garmin GT21-TM Transom Mount Transducer 8 pin
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin GT21-TM is an 8-pin transom transducer that combines 50/200 kHz traditional sonar with CHIRP DownVu scanning, tuned for depth performance and rough conditions. It delivers strong fish arches together with picture-like detail of what lies directly below the boat.
A built-in fast-response temperature sensor is included, and the 30 ft cable with a 0 to 70 degree transom angle range suits a wide range of installations. Mounting hardware and instructions are supplied.
The GT21-TM works with compatible Garmin STRIKER, ECHOMAP CHIRP and GPSMAP combos; an adapter cable may be required for 4-pin or 12-pin sounder ports.
PRODUCT DETAILS
- Traditional 50/200 kHz plus CHIRP DownVu scanning sonar
- 600 W traditional and 500 W DownVu for depth performance
- Optimised for deeper water and rough conditions
- Built-in fast-response water temperature sensor
- 8-pin connector with 30 ft cable, 0 to 70 degree transom angle
No exploded diagram available for this product.
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General
| Sonar type | Traditional and CHIRP DownVu scanning sonar |
| Mounting | Transom |
| Connector | 8-pin |
| Temperature sensor | Built-in fast-response |
Sonar
| Traditional frequency | 50/200 kHz |
| DownVu frequency | CHIRP 260 kHz (245-275) / 455 kHz (445-465) |
| Transmit power | 600 W traditional, 500 W DownVu |
| Beamwidth | Traditional 40/10 deg; DownVu 2.0x51 @260, 1.4x29 @455 |
| Maximum depth | 1,500 ft traditional; 1,000 ft DownVu |
Physical
| Cable length | 30 ft (9 m) |
| Supported transom angle | 0-70 degrees |
Compatibility
| Compatible systems | Garmin STRIKER dv/sv, ECHOMAP CHIRP dv/sv and compatible GPSMAP sonar combos accepting an 8-pin traditional/DownVu transducer. An adapter may be required for 4-pin or 12-pin sounders. |
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