Sea-Dog Drop-In Hidden Horn V.3 w/Grills

The Sea-Dog Drop-In Hidden Horn V.3 with Grills is a USCG-compliant marine signaling device built to meet federal regulations for vessels under 12 meters. Constructed from powder-coated steel and injection-molded nylon, this drop-in horn delivers 111 decibels at 370 Hz±20, providing the acoustic output required by COLREGS and ABYC standard A-23 for safe vessel operation. The kit includes both chrome and white decorative billet screw-in grills, offering flexibility in marine aesthetics while maintaining durability in saltwater environments.

Rated for 12VDC operation, the horn mounts through a standard 2¾-inch diameter hole, making it compatible with most marine horn installations and replacement scenarios. The NMMA Type Accepted certification (#2577066) confirms this unit meets all required standards for small craft use. The combination of steel construction and nylon components resists corrosion from salt air and spray exposure, critical for boaters who operate in coastal or offshore conditions where standard horns deteriorate rapidly.

This horn is designed for weekend anglers, commercial fishermen, and any vessel operator who needs dependable signaling without permanent installation complexity. The hidden design with interchangeable grills keeps the horn visually integrated with modern boat aesthetics while delivering the acoustic authority required for collision avoidance and bridge communication. Whether upgrading an existing system or replacing a failed horn, the Sea-Dog V.3 provides certified compliance and proven reliability for extended time on the water.

Marine horn regulations exist because audible signaling is fundamental to vessel safety. The 111-decibel output at 370 Hz sits in the acoustic range most effectively heard over engine noise and wind, making it suitable for inshore and offshore use. The drop-in design eliminates complex wiring and mounting—critical when you need functional signaling before heading out.