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Fluke VPS421 Series High Voltage Probes

Fluke | Probe and Test Cable

Fluke VPS421 Series High Voltage Probes

MPN / Part No: VPS421-R
Price updated: Sep 24, 2026

This 4mm probe set features a bandwidth of 150 megahertz and a division ratio of 100:1, making it a precise tool for measuring high voltages in industrial environments. Its safe design, rated Cat III up to 1000 volts, is an ideal replacement for older models like the VPS220-R.

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The Fluke VPS421 4mm 150MHz 100:1 2000V - 1000V Cat III voltage probe set replaces the VPS220-R, providing an advanced and safe measuring tool designed for electrical engineers and industrial technicians.

These probes utilize Fluke's precise technology, offering the capability to measure high-frequency signals up to 150 megahertz with a division ratio of 100:1, which is vital for measuring high voltages safely without risk to equipment and operators.

This set serves as an efficient replacement for the VPS220-R and, adhering to Cat III safety standards, provides stable and reliable performance in environments with voltage fluctuations and heavy industrial settings.

The ergonomic design and strong insulation ensure long-term usability without fatigue and with maximum safety.

Key Features of the Fluke VPS421 Voltage Probe Set

  • 150 MHz bandwidth for accurate measurement of high-frequency signals
  • 100:1 division ratio for high voltage measurements with complete safety
  • Cat III safety rating up to 1000 volts
  • 4mm design with safe and insulated tips
  • Direct and optimized replacement for the VPS220-R
  • Constructed with Fluke's high quality and industrial durability

Technical Specifications

Feature Value
Model VPS421-R
Bandwidth 150 MHz
Division Ratio 100:1
Maximum Voltage (Cat III) 1000 volts
Maximum Voltage (Cat IV) 600 volts
Probe Tip Diameter 4 mm
Connection Type Grounded
Color Scheme Red and Black
Application Testing and troubleshooting power and electronic circuits

Frequently Asked Questions

Are these probes suitable for measuring high frequencies?

Yes, this probe set with a bandwidth of 150 megahertz is designed for accurately measuring high-frequency signals and is ideal for electronic and telecommunications applications.

Why should I upgrade from the VPS220-R to this model?

The VPS421-R model provides higher bandwidth, Cat III safety up to 1000 volts, and a more optimized design, offering more precise performance and safety compared to the older VPS220-R model.

Are these probes compatible with Fluke digital multimeters?

Yes, these probes are compatible with most digital multimeters and industrial oscilloscopes that support 4mm probes.

Conclusion

The Fluke VPS421-R probe set is an excellent choice for engineers and technicians who require precision, safety, and durability in high-voltage measurements.

With advanced technical features and high safety standards, this product ensures that your work in industrial environments is performed with minimal risk and maximum accuracy.

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Fluke

Fluke

United States

Fluke Corporation is an American brand that specializes in measurement, testing, and monitoring tool...

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