Industrial Air Horn Siren from Canada
A compressed air-powered horn siren producing loud acoustic signals exceeding 120 dB for industrial sites and emergency warnings. Classified under HTS 8531.80.90.41 as other sound signaling apparatus, distinct from vehicle horns or basic bells. Used for safety alerts in factories and construction zones.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Verify sound pressure level (SPL) certification to confirm classification as signaling apparatus, not musical instruments
• Include safety compliance docs like UL or CE for industrial use to avoid reclassification
• Check for piezo vs air-powered to distinguish from simpler buzzers under 8531.80.10