Sound Level Calibrator
Portable acoustic device generating precise 94/114 dB tones at 1kHz for field calibration of sound level meters in occupational safety. Classified HTS 9027.89.80.90 for sound measuring apparatus. Meets IEC 60942 Class 1 standards.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functioning as audio signal generator
Pure sound generating devices without measurement reference are in Chapter 85.
If for oscilloscope/telecom signal calibration
Electrical signal calibrators go to Chapter 90 electrical instruments.
If classified as general instrument accessory
Non-specific calibration tools default to parts/accessories.
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
• Include NIST/ILAC calibration certificates valid for US safety compliance
• Specify as standalone calibrator, not integrated dosimeter accessory
• Avoid classification with microphones under parts headings
Related Products under HTS 9027.89.80.90
Contact Angle Goniometer
Optical system measuring wettability of surfaces by analyzing droplet shape with high-resolution camera and software. Classified HTS 9027.89.80.90 for surface tension analysis instruments. Used in material science and coatings R&D.
Handheld Soil pH Meter
A portable electronic device used for measuring the pH level of soil samples in agricultural and gardening applications. It falls under HTS 9027.89.80.90 as an instrument for physical or chemical analysis of soil composition. The probe inserts into moistened soil to provide instant digital readings.
Portable Turbidity Meter
A battery-powered instrument that measures water clarity by detecting light scattering from suspended particles, used in environmental monitoring and water quality testing. Classified under HTS 9027.89.80.90 for physical analysis of light interaction with substances. Provides NTU readings for compliance with EPA standards.
Digital Surface Tension Tester
Compact device using the Du Noüy ring method to measure surface tension of liquids in industrial quality control for inks, coatings, and chemicals. Falls under HTS 9027.89.80.90 as an apparatus for measuring surface tension. Delivers precise mN/m readings with automatic temperature compensation.
Non-Contact Gloss Meter
Handheld optical instrument measuring surface gloss at 60-degree angle for paint, plastic, and metal finishes in manufacturing QC. Classified in HTS 9027.89.80.90 for instruments measuring light reflection properties. Conforms to ISO 2813 standards for repeatable GU readings.
Porosity Tester for Films
Benchtop apparatus using gas flow method to quantify porosity in plastic films, membranes, and filters for packaging industry. Under HTS 9027.89.80.90 for measuring porosity. Provides Gurley seconds or Frazier cfm metrics.