First Alert CO400B Carbon Monoxide Alarm from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• 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