HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8536509065 | Doc | 55.0% | CN | US | 2025-05-12 |
8536908585 | Doc | 80.0% | CN | US | 2025-05-12 |
8544421000 | Doc | 55.0% | CN | US | 2025-05-12 |
8544429090 | Doc | 57.6% | CN | US | 2025-05-12 |
3926904510 | Doc | 58.5% | CN | US | 2025-05-12 |
3926909989 | Doc | 42.8% | CN | US | 2025-05-12 |
3916903000 | Doc | 61.5% | CN | US | 2025-05-12 |
3916905000 | Doc | 60.8% | CN | US | 2025-05-12 |
Multimeter Probes
Multimeter probes are essential accessories used with multimeters to connect the instrument to the circuit or component under test. They facilitate the measurement of various electrical parameters such as voltage, current, and resistance without physically altering the circuit.
Material
Probes are typically constructed using the following materials:
- Conductors: Usually copper or copper alloys, chosen for their excellent conductivity. Gold plating is often applied to the tip for improved corrosion resistance and reliable contact.
- Insulation: PVC, silicone rubber, or similar insulating materials encase the conductors to prevent short circuits and ensure user safety. Different colors are used to distinguish between positive and negative leads (typically red for positive and black for negative).
- Boots: Rubber or plastic boots at the probe tips provide protection, improve grip, and can incorporate features like recessed metal tips for accessing tight spaces.
- Probe Body: Often made of flexible, molded plastic for durability and ease of handling.
Purpose
The primary purpose of multimeter probes is to:
- Establish Electrical Connection: Provide a safe and reliable connection between the multimeter and the point in the circuit being measured.
- Isolate the User: Prevent electrical shock by insulating the user from the circuit under test.
- Enable Accurate Measurement: Minimize measurement errors by providing low-resistance connections and stable contact.
Function
Probes function by transmitting the electrical signal from the circuit to the multimeter. Different probe types are designed for specific measurement needs:
- Standard Probes: Used for general-purpose measurements of voltage, current, and resistance.
- High-Voltage Probes: Designed to safely measure high voltages, often with attenuation factors to protect the multimeter.
- Current Probes: Measure current without breaking the circuit, using inductive principles.
- Temperature Probes: Measure temperature, converting it to an electrical signal readable by the multimeter.
- Logic Probes: Used for digital circuit testing, indicating logic states (high, low, pulse).
- Oscilloscope Probes: Though used with oscilloscopes primarily, some designs are compatible with multimeters for more detailed waveform analysis.
Usage Scenarios
Multimeter probes are used in a wide range of applications:
- Electronics Repair: Troubleshooting and diagnosing faults in electronic devices.
- Electrical Maintenance: Testing electrical systems in buildings, vehicles, and industrial equipment.
- Automotive Diagnostics: Measuring voltage, current, and resistance in automotive circuits.
- HVAC Systems: Testing electrical components in heating, ventilation, and air conditioning systems.
- DIY Projects: Measuring electrical parameters in hobby electronics and home improvement projects.
- Research and Development: Precise electrical measurements in laboratory settings.
Common Types
- Standard Test Leads: The most common type, consisting of two insulated wires with probe tips. Often come with interchangeable probe tips.
- Alligator Clips: Used for temporary connections to larger conductors.
- Mini-Grabber Probes: Small probes with spring-loaded clips for connecting to small components.
- Hook Probes: Used for accessing hard-to-reach points.
- Needle Probes: Fine, pointed probes for probing small components and connectors.
- High-Voltage Probes: Feature high impedance and attenuation to safely measure high voltages. Attenuation ratios (e.g., 10:1, 100:1) indicate the reduction in voltage reaching the multimeter.
- Current Clamps/Probes: Measure current flow without breaking the circuit. Often utilize a transformer principle.
- Thermocouple Probes: Measure temperature using the Seebeck effect. Require temperature compensation for accurate readings.
- Logic Probes: Indicate the logic state (high, low, pulse) of digital signals.
Multimeter probes typically function as electrical conductors used for measuring voltage, current, and resistance in electrical circuits. They consist of a conductive probe connected to a cable, often with a protective covering for insulation and safety. They are used in various electrical testing and maintenance applications.
Based on the provided reference material, the following HS codes may be relevant:
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8536509065: This HS code covers electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, lamp-holders and other connectors, junction boxes), for a voltage not exceeding 1,000 V; connectors for optical fibers, optical fiber bundles or cables: Other switches: Other: Other. This could apply if the probes incorporate switching or connection functionalities beyond simple measurement.
- 85: Electrical machinery and equipment and parts thereof.
- 36: Switches, relays, fuses, surge suppressors, plugs, sockets, lamp-holders and other connectors.
- 50: Other switches.
- 90: Other.
- 65: Other.
-
8536908585: This HS code covers electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, lamp-holders and other connectors, junction boxes), for a voltage not exceeding 1,000 V; connectors for optical fibers, optical fiber bundles or cables: Other apparatus: Other Other. This is a broader category for electrical apparatus used in circuits, potentially encompassing probes that don't fall under the 'switch' classification.
- 85: Electrical machinery and equipment and parts thereof.
- 36: Switches, relays, fuses, surge suppressors, plugs, sockets, lamp-holders and other connectors.
- 90: Other apparatus.
- 85: Other.
- 85: Other.
-
8544421000: This HS code covers insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors: Other electric conductors, for a voltage not exceeding 1,000 V: Fitted with connectors: Fitted with modular telephone connectors. If the probes are primarily composed of insulated wire with connectors, this code may be applicable, although the connector type is specific to modular telephone connectors.
- 85: Electrical machinery and equipment and parts thereof.
- 44: Insulated wire, cable and other conductors.
- 42: Other electric conductors.
- 10: Fitted with connectors.
- 00: Fitted with modular telephone connectors.
-
8544429090: This HS code covers insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors: Other electric conductors, for a voltage not exceeding 1,000 V: Fitted with connectors: Other: Other. This is a broader category for insulated conductors with connectors, potentially applicable if the probes are primarily wire-based and don't fit the modular telephone connector specification.
- 85: Electrical machinery and equipment and parts thereof.
- 44: Insulated wire, cable and other conductors.
- 42: Other electric conductors.
- 90: Fitted with connectors.
- 90: Other.
- 90: Other.
According to the provided reference material, the HS code options related to 'multimeter probes' are limited, with only the following 4 found.
Please note that the final HS code classification will depend on the specific materials, construction, and intended use of the multimeter probes. It is recommended to consult with a customs professional for accurate classification.