Backup Battery Alarm Sounder
Rechargeable standby sounder activates during power failure for continuous fire alerting. HTS 8531.80.90.51 for electric sound signaling with backup power feature. 12V sealed lead-acid.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If battery sold without integrated sounder
Separate lead-acid batteries under 8507, not signaling apparatus.
If specifically lead-acid backed without other features
Leads to dedicated subheading 8531.20 for battery-powered sounders.
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Import Tips & Compliance
• DOT exemption for small batteries; test charge cycles
• UL 1971 for signaling devices with batteries
• Declare runtime hours to justify backup classification
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