Garmin GT8HW-TM CHIRP High Wide Transducer
High Wide CHIRP transducer for clear imaging in shallow waters with versatile mounting
Operates on 145–230 kHz frequencies with 250 W power to deliver sharp fish arches, clear target separation and depth coverage up to ~240 m (800 ft). Perfect for coastal fishing and accurate navigation, it includes brackets for transom or trolling motor mounting, fitting hulls with 0° to 70° deadrise. Built with durable plastic, it features an 8‑PIN connector, 6 m cable and full compatibility with Garmin STRIKER, echoMAP CHIRP and GPSMAP.
The Garmin GT8HW‑TM is a transom-mount (or trolling motor mount) transducer with a durable plastic housing and 8‑PIN connector. It uses CHIRP High Wide sonar technology, operating in the 145–230 kHz frequency range with a peak power of 250 W. It delivers high-definition bottom images, sharp fish arches and wide target separation, ideal for anglers in shallow to medium-depth waters (depth up to ~240 m, or 800 ft).
Versatile installation with included mounts
The transducer comes with both transom mount and trolling motor mount brackets, complete with a stainless steel clamp and mounting screws. Suitable for hulls with a deadrise angle between 0° and 70°.
Main technical specifications
- CHIRP High Wide frequency: 145–230 kHz
- Power: 250 W
- Beam angle: 24° → 16°
- Maximum depth: up to ~240 m (800 ft)
- Cable: approx. 6 m (20 ft) length
- Compatibility: Garmin STRIKER, echoMAP CHIRP, GPSMAP, etc.
Ideal for coastal fishing and accurate navigation
Thanks to its wide CHIRP bandwidth and broad beam angle, it covers a larger area beneath the boat, delivering well-defined fish arches and reliable readings even at moderate speeds. Perfect for lake fishing, coastal areas, and environments requiring accurate bottom tracking.