🔥 FLASH SALE: Call us to order and get up to 25% OFF + FREE Shipping!

Back to Fish Finders
Garmin GT51M-TH Transducer Stainless Steel
Fish Finders

Garmin GT51M-TH Transducer Stainless Steel

MODEL: GAR010-01966-10

IN STOCK & READY TO SHIP

$699.99

Request a Technical Quote

Or call direct: 1-800-555-0199

System Overview

Built for serious offshore conditions, this sensor ensures deep-water penetration and exceptional target clarity for both traditional and scanning sonar readouts. Engineered for high-stakes marine environments where precision and reliability are non-negotiable. This unit provides the critical data processing power required for advanced navigation and situational awareness.

Technical Specifications

Mid-band CHIRP frequency support
12-pin secure thru-hull connection

Customer Reviews

4.9

Based on 27 Verified Ratings

Capt. Mike D.2 weeks ago

"Installed this on my center console last week. The clarity is unbelievable. Customer support helped me confirm NMEA 2000 compatibility before buying."

Sarah Jenkins1 month ago

"Upgraded from a 10-year-old unit. The processing speed is night and day. Fast shipping from Neptune too, box arrived in perfect condition."

Tom R.1 month ago

"Spot on target separation. Found the drop-offs easily. Highly recommend this exact model if you fish offshore."

Dave 'Salty' Waters2 months ago

"Solid build quality, typical of this brand. The touchscreen works perfectly even when my hands are covered in salt and water."

Offshore Angler 3653 months ago

"Box arrived perfectly sealed. Installation was a breeze. Tied right into my existing backbone without needing extra adapters."

Capt. Greg4 months ago

"I was hesitant to spend this much, but the performance justifies the price. Neptune gave me a great deal when I called in."

M. Torres5 months ago

"Incredible detail on the bottom returns. I can literally see individual baitfish separating from the structure. Very satisfied."

Robert V.6 months ago

"Perfect replacement for my old system. The tech team at Neptune Marine walked me through the wiring diagram. 5 stars!"