Real-Time Clock (RTC) DS3231 Module
Precision timekeeping module with DS3231 IC, EEPROM, crystal oscillator, and I2C interface for accurate date/time tracking. HTS 8543.90.88 classification as other electrical machine parts for timing functions, independent of watches. Includes backup battery holder for power loss protection.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when qualifying as time recording apparatus
Complete time recorders classify under heading 9107.
If embedded in ADP timing systems
RTC modules for computers use ADP parts classification.
If parts of specific timing equipment
Dedicated equipment parts use other 8543.90 subheadings.
Not sure which classification is right?
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Import Tips & Compliance
• Specify temperature-compensated crystal oscillator accuracy
• Include battery type and lifespan in specifications
• Test I2C address conflicts before bulk import
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