Out of stock
SKU: CW65247
MPN: TM258-HB
The Airmar TM258 1kW Transom Mount Transducer with Humminbird #9 Plug delivers professional-grade sonar performance for anglers and boaters who demand reliable fish-finding capability without breaking the bank. Built for transom mounting on freshwater and inshore saltwater vessels, this transducer combines proven Airmar engineering with direct Humminbird compatibility, making it an ideal upgrade or replacement for existing systems. Whether you're mapping shallow structure, locating suspended gamefish, or monitoring bottom composition, the TM258 gives you the clarity and range needed to fish smarter and catch more.
The 1kW power rating provides solid penetration and target definition across moderate to deep water columns, while the transom-mount design keeps installation simple—no hull transducers or thru-hulls required. Airmar's TM258 uses a dual-frequency ceramic element that delivers both broad-beam wide-area scanning and narrow-beam detail imaging, allowing you to switch between coverage modes depending on whether you're prospecting new water or refining on specific marks. The 7-pin Humminbird #9 connector ensures plug-and-play integration with compatible Humminbird fish finders, eliminating custom wiring and compatibility guesswork that can plague retrofit projects.
This transducer is best suited for aluminum and fiberglass boat owners running Humminbird units who want a proven, field-tested solution without premium pricing. The lightweight 1 lb design minimizes drag and fuel penalty, while the sealed design resists corrosion from saltwater exposure and prolonged dunking. Verify your Humminbird unit's pinout specification before purchase to confirm #9 connector compatibility; most modern Humminbird systems manufactured in the last 10+ years support this standard. Installation typically takes under an hour—mount to the transom below the waterline, ensure full water contact for signal coupling, and connect the 7-pin cable to your head unit's transducer port.
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