Other sound signaling apparatus
Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof: > Other apparatus: > Other > Other sound signaling apparatus
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified under HTS 8531.80.90.41
Mining Emergency Hooter
Explosion-proof siren approved for underground mining evacuation and machinery stoppage. HTS 8531.80.90.41 classification for hazardous location sound signaling. MSHA certified.
Industrial Air Horn Siren
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.
Factory Warning Klaxon
Multi-tone electro-mechanical klaxon horn for factory shift changes, danger warnings, and evacuation signals. Meets HTS 8531.80.90.41 as other sound signaling apparatus beyond basic bells. Typically 105-115 dB output for large indoor spaces.
Marine Fog Horn Signal
Electric fog horn compliant with SOLAS regulations for vessel collision avoidance signaling. HTS 8531.80.90.41 covers this as other sound signaling apparatus for maritime safety. Automated timer and remote activation standard.
Emergency Evacuation Siren
High-decibel wall-mount siren for building evacuation during fires or disasters, synchronized with alarm panels. Fits HTS 8531.80.90.41 as specialized sound signaling beyond basic bells. Voice evacuation capable models available.
Railway Trackside Warning Horn
Stationary compressed air horn for railway level crossing and track worker warnings. HTS 8531.80.90.41 classification for rail-specific sound signaling apparatus. Meets AREMA standards for North American rail.
Backup Alarm for Construction Equipment
Reverse motion alarm producing 97-112 dB tonal signal for heavy equipment blind spots. HTS 8531.80.90.41 as other sound signaling for industrial safety. White noise broadband models available.
School Zone Pedestrian Warning Siren
Solar-powered intermittent siren for school crossing protection and pedestrian alerts. Classifies under HTS 8531.80.90.41 for public safety sound signaling. Photo-sensor activated.
Avalanche Rescue Transceiver Beacons
Search and rescue sound signaling beacons emitting 457 kHz pulse tones for avalanche victim location. HTS 8531.80.90.41 covers specialized emergency sound apparatus. Triple antenna digital models.
Forklift Pedestrian Safety Horn
Compact 100 dB horn specifically designed for warehouse forklift-to-pedestrian collision avoidance. HTS 8531.80.90.41 for industrial material handling sound signaling. Multi-frequency tonal alert.
Elevator Car Arrival Gong
Electronic chime/gong signaling elevator car arrival at floors for passenger safety. HTS 8531.80.90.41 as building safety sound signaling apparatus. Synchronized with door operation.
Crane Anti-Collision Horn
Directional high-power horn preventing crane-to-crane collisions on construction sites. HTS 8531.80.90.41 for overhead traveling crane sound signaling. Zone-specific directional signaling.
Nuclear Plant Containment Siren
Radiation-hardened siren for nuclear facility emergency containment zone evacuation. HTS 8531.80.90.41 covers specialized industrial sound signaling. NEMA 4X/Nuclear qualified.
Oil Rig Platform Alarm Klaxon
Corrosion-resistant klaxon for offshore oil platform muster and emergency evacuation. HTS 8531.80.90.41 classification for marine industrial sound signaling. NORSOK standard compliant.
Warehouse Forklift Intersection Horn
Preemptive intersection warning horn for high-traffic warehouse forklift corridors. HTS 8531.80.90.41 for material handling safety sound signaling. Proximity sensor activated.