9022.90.70.00/Ionization Smoke Detector Sound Chamber Assembly/China

Ionization Smoke Detector Sound Chamber Assembly from China

Acoustic chamber optimized for 85dB alarm tone in ionization-type detectors. Classified HTS 9022.90.70.00 as integral part amplifying radiation detection alerts. Frequency-matched to human hearing response curve.

Duty Rate — China → United States

11%

Rate breakdown

9903.03.0110%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
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Import Tips

• Certify to UL 464 fire alarm appliance standards

• Measure SPL at 10ft per ANSI S1.2 for documentation

• Specify ionization model compatibility exclusively

Ionization Smoke Detector Sound Chamber Assembly from China — Import Duty Rate | HTS 9022.90.70.00