Ionization Smoke Detector Printed Circuit Board
Custom PCB designed exclusively for ionization smoke detectors, integrating amplification circuits for the ionization chamber signal and low-power processing. Falls under HTS 9022.90.70.00 as a dedicated part for apparatus using ionizing radiation in smoke detection. Essential for converting radiation-induced current changes into audible alarms.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic printed circuit boards not detector-specific
Unspecified PCBs classified by material/function in heading 8534, not apparatus parts.
If parts for automatic data processing machines
Circuit boards principally for computers fall under 8473, not safety apparatus.
If general parts for multiple measuring instruments
Parts suitable for various Chapter 90 articles default to 9033 per chapter note 2.
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Import Tips & Compliance
• Include FCC Part 15 certification for EMI compliance in documentation
• Declare exact radioactive content if any to facilitate CBP radiation screening
• Use HTSUS advisory rulings for complex assemblies to minimize duty disputes
Related Products under HTS 9022.90.70.00
Detector Head Connector Harness for Ionization Units
Multi-conductor harness linking ionization chamber to main PCB in modular smoke detectors. HTS 9022.90.70.00 for signal transmission from radiation sensor in smoke apparatus. Strain-relief design for 20-year service.
Tamper-Resistant Cover for Ionization Smoke Sensors
Locking dust cover specific to ionization chamber exposure in commercial detectors. Provides radiation shielding when not in service. HTS 9022.90.70.00 accessory protecting ionizing apparatus components.
Ionization Chamber Module for Smoke Detectors
This is the core detection component in ionization-type smoke detectors that uses a small amount of radioactive material to ionize air between two electrodes, detecting smoke particles by changes in current flow. It falls under HTS 9022.90.70.00 as a part specifically for ionization smoke detectors, which rely on ionizing radiation for operation. These modules are precision-engineered for residential and commercial fire safety systems.
Americium-241 Source Assembly for Ionization Smoke Alarms
A sealed radioactive source containing Americium-241, the key ionizing element in smoke detectors that emits alpha particles to create ionizable air. Classified under HTS 9022.90.70.00 as an essential part of ionization-type smoke detectors using ionizing radiation. These assemblies are rigorously tested for safety and longevity in fire detection devices.
Replacement Ionization Chamber for Residential Smoke Alarms
Factory replacement ionization chamber for popular household smoke detectors like First Alert models, containing the radioactive foil and electrodes. HTS 9022.90.70.00 applies as a part of ionizing radiation-based smoke detection apparatus. Designed for easy snap-in installation to extend detector life.
High-Sensitivity Ionization Sensor for Commercial Fire Systems
Advanced ionization sensor for duct-mounted commercial smoke detection systems, optimized for fast response in HVAC applications. Classified HTS 9022.90.70.00 for its use of alpha radiation in smoke particle detection within fire alarm apparatus. Meets NFPA 72 standards for large building protection.