Combustion Analyzer Oxygen Sensor PCB
Signal conditioning PCB for zirconia oxygen sensors in combustion efficiency analyzers (HTS 9027.81). Provides reference air pump control, thermocouple compensation, and lambda calculation. Dedicated electrical assembly for boiler efficiency gas analysis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pyrometers or high-temperature thermometers
Temperature measurement dominant function shifts to heading 9025.
If chromatographs rather than physical property analyzers
Chemical composition analysis vs physical property measurement distinction.
If photosensitive semiconductor devices
If sensor classified as discrete photosensitive component.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify sensor operating temperature range (up to 1400°C) proving combustion application
• Zirconia cell imports classify separately under ceramic parts provisions
• Calibration gas requirements may affect import permit documentation
Related Products under HTS 9027.90.45.00
Smoke Detection Analyzer Control PCB
Printed circuit board assembly dedicated to smoke analysis apparatus under subheading 9027.81, featuring particle detection algorithms and alarm interfaces. This component processes optical and ionization sensor signals for industrial smoke monitoring systems. It falls under 9027.90.4500 as a specialized electrical part for physical/chemical analysis instruments.
Spectrometer Signal Processing PCB
This PCB assembly processes spectral data for gas chromatograph-mass spectrometers under 9027.89, including ADC converters and FPGA for peak analysis. Designed exclusively for chemical composition analysis apparatus. Classified as printed circuit assemblies for physical/chemical analysis instruments per HTS 9027.90.4500.
Infrared Gas Analyzer Interface PCB
Interface board for NDIR (Non-Dispersive Infrared) gas analyzers under 9027.81, featuring optical sensor amplification and concentration calculation circuits. Essential for CO2, CO, and hydrocarbon measurement in HVAC systems. Falls under printed circuit assemblies for gas analysis apparatus.
Laboratory HPLC Detector Electronics Board
Electronics PCB for High-Performance Liquid Chromatography UV detectors classified under 9027.89 chemical analysis apparatus. Handles lamp control, photodetector signal processing, and peak integration. Specific design for laboratory chromatographic instruments qualifies it for 9027.90.4500.
Mass Spectrometer Ion Source Control Board
Control PCB for mass spectrometer ion source power supplies and timing circuits under HTS 9027.89 chemical analysis apparatus. Manages filament current, extraction voltages, and quadrupole control for molecular identification. Essential electrical assembly for advanced analytical instruments.
VOC Emissions Portable Analyzer PCB
Compact PCB for handheld VOC (Volatile Organic Compound) analyzers under 9027.81, integrating photoionization detection and PID lamp control. Designed for field industrial hygiene monitoring. Printed circuit assembly specific to portable gas analysis apparatus.