The Schmitt Marine 12428 is a top-tier 24V Deluxe All-Stainless Dual Trumpet Horn. Designed for larger vessels with 24V electrical systems, this horn is engineered for maximum volume and extreme weather resistance, featuring 304 stainless steel construction both inside and out.

High-Volume Safety & Durability

This dual trumpet model produces a powerful, harmonized tone that is significantly louder than single-trumpet alternatives. Its sealed sound unit and innovative water drainage feature ensure the horn performs reliably even when exposed to heavy rain or sea spray.

Key Features:

• Extreme Volume: Rated at 122-125 dB at 1 meter, making it one of the loudest electric horns available for commanding attention in high-traffic or foggy conditions.

• Maximum Corrosion Resistance: Constructed with 304 stainless steel for the trumpets, motor cover, and even internal components—guaranteed against rust for 5 years. 

• Sealed Sound Unit: The electrical components are completely protected from moisture, preventing the common "tinny" sound or failure caused by salt air.

• ABYC Compliant: Meets or exceeds ABYC A-23 standards for boats up to 12 meters (approx. 39 ft).

• Ease of Installation: Pre-wired and designed to fit existing hole patterns for quick upgrades from older, less durable horns.

Technical Specifications:

• Model Number: 12428

• Voltage: 24V DC 

• Max Amp Draw: 4 Amps

• Dimensions: 18-1/2" L x 8" W x 5" H

• Frequency: Dual Tone (approximately 321 Hz)

• Construction: 304 Stainless Steel (Interior and Exterior)

Why Choose the Deluxe Dual Trumpet?

The 12428 is the choice for owners of cruisers, yachts, and commercial vessels who require a 24V system. The dual trumpets create a richer, deeper sound that carries further across the water than a single tone. Because it is "Deluxe" (stainless steel inside and out), it avoids the internal corrosion that often kills cheaper horns within a single season.

Installation Pro-Tip:

Since this 24V horn draws 4 Amps, ensure you are using a dedicated fuse and a high-quality horn button or relay. For the best sound projection, mount the horn on the hardtop or cabin roof with the trumpets facing forward and slightly angled down (approx. 5°) to allow any internal condensation to drain out of the built-in drain holes.