Airmar B285C-M Thru-Hull Medium CHIRP With Mix-N-Match Connector

The Airmar B285C-M Thru-Hull Medium CHIRP with Mix-N-Match Connector represents a serious upgrade for anglers and boaters who demand reliable, long-range target detection without sacrificing transom space. This thru-hull transducer is engineered for vessels where a dedicated mounting location meets precision sonar performance—whether you're running a center console, sportfisher, or dedicated fishing platform. The Medium frequency CHIRP architecture delivers the balance serious anglers need: enough resolution to mark structure and baitfish at depth, yet broad enough coverage to search water columns efficiently. If you're tired of guessing where fish are holding or missing structure because your sonar can't cut through thermoclines, this Airmar transducer rebuilds confidence in your bottom machine.

CHIRP technology (Compressed High-Intensity Radar Pulse) sweeps across a frequency band rather than pinging at a single frequency, creating superior target separation and clutter rejection in real time. The Medium frequency hull design cuts through salt and fresh water with minimal noise and interference, while the Mix-N-Match connector system ensures compatibility with modern Garmin, Lowrance, and Simrad display units without proprietary cables or adapters. At 19.6 pounds, this transducer sits at the practical weight limit for permanent thru-hull installation—substantial enough for durability and signal integrity, yet manageable during service or reinstallation. The bronze through-hull fitting resists corrosion in saltwater environments, and the ceramic piezo elements maintain frequency stability across seasonal temperature swings.

This transducer is ideal for serious saltwater fishermen, charter captains, and boaters running shallow to moderate depths who refuse to compromise on sonar resolution. The B285C-M excels in offshore and inshore scenarios where you need to read bottom hardness, locate drop-offs, and track moving targets like dolphin or stripers with the sensitivity modern electronics demand. Proper installation requires a hull penetration through the deadrise area—avoid the keel or strut—and the connector design allows field swaps with other Mix-N-Match units if your system needs flexibility. Consult your specific sonar head's technical specs to confirm pinout compatibility; most Garmin CHIRP and Simrad systems integrate seamlessly with this architecture.