Piezoelectric Fire Alarm Buzzer
High-decibel piezoelectric buzzer module for integration into fire alarm systems, producing piercing sound signals. HTS 8531.80.90.51 covers this as other sound signaling apparatus parts, excluding telecom types. Rated for 85-110 dB output.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as replacement parts for existing alarms
All parts of 8531 apparatus, including buzzers, fall under 8531.90 regardless of function.
If mounted semiconductor transducers without signaling function
Pure piezoelectric transducers not for alarms go to 8541 as semiconductor devices.
If with built-in microphone for voice evacuation systems
Microphone-integrated units classified under 8518 sound recording/reproducing apparatus.
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Import Tips & Compliance
• Specify voltage and dB rating in invoices; test for IP ratings if for humid environments
• Include material safety data sheets for piezo ceramics to speed customs clearance
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