Furuno Side-Scan Transom Mount Transducer
Best side-scan upgrade for serious anglers using NavNet display systems.
Enhance your marine navigation and fishfinding with the Furuno 455T-TM903 Side-Scan Transducer. This high-performance unit utilizes CHIRP technology to deliver detailed side-scan imagery, perfect for exploring underwater environments. It offers 150 watts of power per side and operates within the 445-465kHz frequency range. Designed for transom mounting, it includes an integrated temperature sensor and a generous 12-meter (40ft) cable. Compatibility with NavNet TZtouchXL displays ensures seamless integration into your existing marine electronics setup. All necessary mounting hardware is included for easy installation.
$589.95
Owner Satisfaction
4.7
/ 5
Category Rank
4
/ 167
#4 in Fish Finders
Price vs Category Average
-42%
Below average
Frequency
445465
/ CHIRP - kHz
Who it's for
- Anglers needing detailed structure views for precise location scouting
- Boat owners already invested in the Furuno ecosystem
- DIY boaters wanting to avoid complex hull modifications
Who should skip it
- Captains who frequently travel at high planing speeds
- Boaters navigating shallow, debris-heavy, or tight docking areas
- Budget-conscious shoppers looking for entry-level sonar solutions
Performance breakdown
Imaging Resolution
High-frequency CHIRP delivers crisp, photorealistic detail of underwater structures.
Installation Ease
Transom mounting hardware is straightforward and includes everything needed for setup.
Signal Range
Optimized for shallow to mid-depth exploration with consistent side-scan coverage.
System Integration
Seamlessly syncs with NavNet TZtouchXL displays for a unified navigation experience.
Build Durability
Rugged urethane housing stands up well to harsh marine environments.
Data Precision
Integrated temperature sensor provides accurate environmental data for better fishing results.
Key Specs
Frequency
CHIRP 445-465 kHz
Power Output
150 Watts (per side)
Install Type
Transom Mount
Cable Length
12m (40ft)
Housing Type
Urethane
Connector Type
12-pin
Sonar Technology
Chirp, Side Imaging
Features
- High-frequency CHIRP side-scan imaging
- Detailed underwater imagery
- 150W power output per side
- Integrated temperature sensor
- Transom mount design
- 12m (40ft) cable included
- Compatible with NavNet TZtouchXL
What customers say
Customers highly value this transducer for its professional grade performance, specifically praising the exceptional clarity and detail provided by the side scanning technology. Serious users find its precision in discerning structure and targets to be a significant advantage over competitors, even in challenging conditions. The heavy duty construction assures users of its durability in harsh marine environments. While the premium price point is noted, the resulting data quality validates the investment for its target demographic. A recurring point is the initial complexity of installation, requiring meticulous setup for optimal signal return. Once calibrated, however, the unparalleled results solidify its reputation as a top tier tool.
Know before you buy
This transducer is specifically designed for seamless integration with Furuno NavNet TZtouchXL series displays.
Yes, it features an integrated temperature sensor, allowing you to monitor water surface temperatures directly on your compatible display.
CHIRP technology provides significantly higher resolution and clearer underwater imagery compared to traditional sonar, making it easier to identify fish, structure, and bottom contours.
Yes, the unit comes with all the necessary mounting hardware required for a standard transom installation.
The transducer includes a 12-meter (40-foot) cable, which is sufficient for most standard boat configurations.
While this unit excels at side-scan imaging at lower speeds, transom-mounted transducers can sometimes lose bottom lock at high speeds due to water turbulence. It is best used for scanning and searching environments at moderate trolling or cruising speeds.
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Ask Hayley anything about this product before you decide.