GARMIN GT15M-THF Stainless Steel Transducer
The GARMIN GT15M-THF is a stainless steel transducer designed for marine applications, featuring a 20° tilt for optimal sonar performance at an operating frequency of 1.5 MHz. It is installed by marine electronics professionals to enhance fishfinding capabilities and depth measurement.
Compatibility & Applications
- Pairs with Garmin echoMAP and GPSMAP series for enhanced sonar imaging.
- Mounts on transom of vessels 20–40 ft for optimal performance.
- Integrates with NMEA 2000 networks for streamlined data sharing.
- Replaces older Garmin transducers such as the GT15M-TH.
- Utilized in both recreational and commercial fishing applications.
- Fits on various hull types, ensuring versatility in installation.
- Wires to existing sonar systems for quick installation.
- Drops into existing cutouts for easy replacement without new drilling.
The unit provides precise depth readings and fish detection, making it an effective upgrade for existing sonar systems. Its stainless steel construction ensures durability in saltwater environments, offering a longer lifespan compared to generic transducers. An installation on a fishing boat’s transom enhances sonar functionality, providing superior imaging and depth accuracy.







