Upgrade your NavNet TZtouch3 experience with the Furuno 225T-TM904 transom mount transducer, designed specifically for high-resolution CHIRP side-scan sonar. This robust unit delivers crystal-clear images of underwater terrain, fish-holding structures, and wrecks directly from your transom, enhancing your boating adventures without the complexity of through-hull installations.

Powerful Performance for Detailed Side Imaging

At the heart of the 225T-TM904 lies its dual 150-watt CHIRP side-scan arrays operating in the 220-240kHz range. This high-frequency setup excels at producing sharp, detailed sonar returns ideal for shallow to mid-depth waters commonly explored by recreational boaters and anglers. Whether you're scouting drop-offs, submerged timber, or schools of baitfish hugging the bottom, the wide coverage on both port and starboard sides gives you a panoramic view up to impressive distances, helping you pinpoint hotspots quickly.

The integrated temperature sensor adds another layer of utility, providing real-time water temp data to correlate with fish behavior patterns. With a durable urethane housing built to withstand harsh marine environments, this transducer stands up to constant exposure to saltwater, hull vibrations, and impacts from debris.

Effortless Transom Installation

Setting up the 225T-TM904 is straightforward for DIY boat owners. The included adjustable mounting bracket and hardware kit allow for precise positioning on most transom designs, ensuring optimal sonar beam projection. Its 12-meter (40-foot) cable with a reliable 12-pin connector reaches cleanly to your TZT12F, TZT16F, or TZT19F multifunction display, minimizing clutter in tight helm spaces.

• Position the bracket 1/3 from the hull bottom for best beam spread
• Angle slightly downward (10-15 degrees) to avoid aeration in choppy conditions
• Route cable along gunwales using zip ties for protection

Pro tip: Pair it with Furuno's intuitive side-scan interface on TZtouch3 for color-coded overlays, making it easy to distinguish hard bottom from soft mud or vegetation.

Key Benefits for Anglers and Boaters

Unlike traditional down-facing transducers, side-scan technology from the 225T-TM904 reveals what lurks off to the sides, expanding your search area dramatically. Anglers love how it uncovers hidden ledges and bait pods that downscan might miss, while navigators appreciate spotting obstacles like rocks or mooring chains in low visibility.

• Superior Resolution: CHIRP processing eliminates clutter for photo-like clarity
• Extended Range: Effective side coverage suits bays, rivers, and coastal zones
• Versatile Use: Great for trolling, drifting, or slow-speed searches
• Rugged Build: Urethane shell resists fouling and UV damage

Seamless Integration with TZtouch3 Systems

This transducer plugs directly into the native CHIRP side-scan capabilities of your TZtouch3 MFD, no additional modules required. Enjoy seamless switching between sonar modes, waypoint marking on side-scan views, and even video export for post-trip analysis. It's a cost-effective way to unlock pro-level imaging on compatible Furuno chartplotters.

Maintenance for Long-Term Reliability

To keep your 225T-TM904 performing at peak, rinse with fresh water after saltwater use and inspect the face for marine growth quarterly. A quick wipe with a soft cloth restores beam clarity, ensuring consistent results season after season. Avoid high-speed impacts by kicking up the outboard when trailering.