First Alert CO400B Carbon Monoxide Alarm
Battery-operated electrochemical carbon monoxide detector that sounds an alarm for hazardous gas detection, similar to fire alarms. Under HTS 8531.10.00 as similar apparatus for safety signaling.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed as gas analysis instrument
Laboratory gas/smoke analysis instruments use different heading.
If combined with fire detection
Multi-function fire/CO units may have specific fire alarm subheadings.
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Import Tips & Compliance
• UL 2034 certification mandatory for CO detectors
• Include sensor life expectancy (typically 5-7 years) on labeling
• Test electrochemical sensor accuracy at various CO levels
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