Psophometer
Psophometers measure weighted noise in telephone circuits using the psophometric curve for standardized audio assessment. Specifically listed under HTS 9030.40.00.00 for telecommunications noise measurement.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for electricity meters measuring power noise
Instruments for electrical quantities like power line noise go to 9030.82.
If used for environmental noise rather than telecom circuits
General noise/volume meters for non-electrical/telecom use classify in 9026.
If when part of telephone line testing sets
Integral parts of telecom transmission apparatus classify with the set in 8517.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Reference ITU-T O.41 standard in documentation to substantiate telecom classification
• Calibrate to international standards before import to prevent disputes
Related Products under HTS 9030.40.00.00
Signal Gain Measuring Instrument
This device precisely measures amplification or attenuation of signals in telecom transmission lines and equipment. Classified under HTS 9030.40.00.00 for its special design for telecommunications applications like fiber optic and radio networks.
Optical Time Domain Reflectometer
OTDRs analyze fiber optic cables by sending light pulses and measuring reflections to detect faults and losses. Classified in HTS 9030.40.00.00 for telecom fiber infrastructure testing.
Echo Canceller Test Set
Test sets evaluate echo cancellation performance in VoIP and telephony systems by injecting and measuring echoes. Specially designed for telecom under HTS 9030.40.00.00.
Jitter Measurement Instrument
Measures timing variations (jitter) in clock and data signals for synchronous telecom networks. HTS 9030.40.00.00 for telecom timing analysis tools.
Power Meter for Telecom Signals
Specialized optical/rf power meters calibrated for telecom signal levels in dBm across fiber and antenna systems. Classified HTS 9030.40.00.00 for telecom use.
Protocol Analyzer for Telecom
Captures and decodes telecom protocols like SS7, Diameter for network diagnostics. HTS 9030.40.00.00 as telecom signal checking apparatus.