Garmin
Garmin GT20-TM 4-Pin Transducer – 500W Traditional & ClearVü – Clearance
- SKU:
- G010-12087-00
- UPC:
- 753759114923
Description
Clearance – Previous Model | Reduced Price | While Stocks Last
See fish, underwater structure and the bottom beneath your boat with the Garmin GT20-TM. This transom-mount transducer combines traditional sonar, ClearVü scanning sonar and water temperature measurement in one unit.
Available at a reduced price as clearance stock, it offers an economical replacement option for compatible Garmin fishfinders and chartplotters.
Key Features
- Traditional sonar: 77/200 kHz for fish detection and bottom information.
- ClearVü scanning sonar: 455/800 kHz for detailed views of submerged objects and structure.
- 500W power rating for both traditional and ClearVü sonar.
- Built-in temperature sensor with fast response.
- 4-pin connector for compatible Garmin equipment.
- 6.1m cable for installation flexibility.
Technical Specifications
| Specification | Details |
|---|---|
| Model | GT20-TM |
| Garmin part number | 010-12087-00 |
| Connector | 4-pin |
| Traditional frequencies | 77/200 kHz |
| ClearVü frequencies | 455/800 kHz |
| Traditional power | 500W |
| ClearVü power | 500W |
| Maximum traditional depth | 579m / 1,900ft |
| Maximum ClearVü depth | 229m / 750ft |
| Temperature sensor | Included |
| Cable length | 6.1m / 20ft |
| Transom angle | 0–70° |
Maximum depth depends on water conditions, installation and the connected sonar unit.
Compatibility
For use with compatible Garmin sonar equipment. This is the 4-pin version of the GT20-TM. Connector type and supported sonar functions must be checked before ordering; some installations may require an adapter.
Unsure whether it fits your unit? Contact CH Marine with your Garmin model number before purchasing.
Supplied With
- Garmin GT20-TM 4-pin transducer
- Transom and trolling motor mounting hardware
- Installation instructions
Clearance Offer
Previous-generation model offered at a reduced price to clear remaining stock. Available while stocks last.





