Ionization Chamber Airflow Window Assembly
Insect-screened airflow aperture for ionization smoke detector sensing chambers. Specific HTS 9022.90.70.00 part enabling smoke particle entry to radiation field. 10-micron filtration prevents false alarms.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general air filters
Filters principally for air cleaning classified in 8421.
If plastic insect screens
Plastic mesh screens by material if not apparatus-specific.
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Import Tips & Compliance
• Test airflow resistance per UL 268 Method 2
• Specify 'smoke sensing exclusive' design function
• Include humidity exposure test results (85% RH)
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.
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.
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.