Psophometer
A psophometer measures weighted noise in telephone circuits using the psophometric curve for standardized audio assessment. It is specifically listed as an example under tariff item 9030.40.00 for telecommunications noise measurement.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the noise measurement is for non-telecom audio applications
General noise meters are classified under other subheadings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the psophometer uses the psophometric weighting curve for telecom noise measurement
• Provide the ITU-T standard reference to support classification
• Keep the instrument's calibration certificate for CBSA inspection
Related Products under Tariff item 9030.40.00
Bit Error Rate Tester
A Bit Error Rate Tester (BERT) generates predefined test patterns and measures bit error rates in digital telecommunications systems, including fiber optic and wireless networks. It is specially designed for telecommunications performance testing, making it classifiable under tariff item 9030.40.00.
Cross-Talk Meter
A cross-talk meter is a specialized instrument that measures unwanted signal interference between communication channels in telecommunications networks. It is explicitly listed as an example of instruments specially designed for telecommunications under tariff item 9030.40.00.
Distortion Factor Meter
A distortion factor meter quantifies harmonic and non-linear distortions in telecommunications signals to maintain voice and data quality. It is included as an example of telecom-specific apparatus under tariff item 9030.40.00.
Echo Canceller Test Set
An echo canceller test set evaluates echo cancellation performance in VoIP and telephony systems by injecting controlled echoes and measuring the cancellation effectiveness. It is specially designed for telecommunications testing, qualifying under tariff item 9030.40.00.
Group Delay Meter
A group delay meter measures signal phase delay variations across frequencies in telecommunications filters and transmission lines. It is specially designed for telecom applications, falling under tariff item 9030.40.00.
ISDN Protocol Tester
An ISDN protocol tester tests ISDN layer 1-3 protocols for digital telephony networks, verifying signaling and data integrity. It is specially designed for telecommunications, qualifying under tariff item 9030.40.00.