Fluke 80K-40, High Voltage Probe, CAT I 40000 V

The Fluke 80K-40 is a high-voltage probe designed to extend the measurement capabilities of standard digital multimeters. When connected to a compatible meter, it allows safe measurement of DC voltages up to 40 kV, making it suitable for applications involving high-energy equipment, power supplies and industrial test systems. The probe is finished in black and red for clear polarity identification and meets CAT I 40,000 V requirements for use on isolated high-voltage sources.

Special Features and Benefits of the Fluke Black, Red High Voltage Probe

• Enables measurement of DC voltages up to 40 kV when used with a standard DMM.
• CAT I 40,000 V rating for safe handling of isolated high-voltage circuits.
• Durable, insulated body protects high-voltage verification.
• Clear red and black markings guarantee accurate polarity connection.
• Compatible with most Fluke digital multimeters equipped for high-impedance input.

Why Choose this Product?

The 80K-40 provides a controlled and safe method for stepping down high voltages to a measurable range. Its high-resistance internal divider helps maintain accuracy while protecting both the user and the connected instrument. This design supports technicians working on equipment where reliability and measurement confidence are critical.

Versatility in Applications

• The probe is commonly used for testing high-voltage power supplies, CRT systems, electrostatic equipment, industrial HV sources and laboratory test fixtures.
• It is valuable during maintenance, calibration and design verification tasks involving elevated DC potentials.
• For engineers who routinely handle high-voltage diagnostics, it provides a safe and practical extension to their existing multimeter capabilities.

For more information please check the datasheets.