BRK 9120B Hardwired Smoke Alarm with Battery Backup
120V hardwired ionization/photoelectric combo smoke detector with 9V battery backup and first-alert signal. Under HTS 8531.10.00.25 as 'other' despite dual tech, since not purely ionizing. Interconnects up to 18 units with silence feature.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pure ionization without photoelectric
Eliminates combo status, triggering radioactive material protocols.
If bulk imported as OEM boards
Printed circuit boards for alarms classify as control panel parts.
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Import Tips & Compliance
• Dual-tech requires both UL photoelectric and ionization certifications documented
• Declare exact interconnection protocol (3-3 signal) to prevent panel classification
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