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Extech EX520 Cat IV True RMS Industrial Multimeter

Extech | Multimeter

Extech EX520 Cat IV True RMS Industrial Multimeter

MPN / Part No: EX520
Price updated: Sep 24, 2026

The Extech EX520 Cat IV True RMS Industrial Multimeter, with the capability to measure voltage up to 1000 volts and current up to 20 amperes, is a precise tool for electrical engineers and industrial technicians. This device ensures safety and high accuracy in harsh working environments with its waterproof features and capabilities to measure temperature, resistance, and frequency.

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The Extech EX520 Cat IV True RMS Industrial Multimeter is an advanced measuring tool designed for challenging industrial applications and troubleshooting electrical systems.

This device supports AC/DC voltage up to 1000 volts and current up to 20 amperes, providing a wide range of measurements including resistance, capacitance, frequency, temperature, diode, and duty cycle testing. The robust and waterproof structure of this multimeter makes it an ideal choice for wet and hazardous environments.

The True RMS feature in this model enables accurate measurement of non-sinusoidal signals, which is essential for troubleshooting modern electronic equipment.

The Cat IV safety rating signifies its high resistance to sudden voltage fluctuations at electrical network input points. This multimeter is designed for electricians, maintenance engineers, and industrial inspectors who require high precision and safety.

Key Features of the Extech EX520 Cat IV True RMS Industrial Multimeter

  • True RMS measurement for high accuracy on non-sinusoidal signals
  • Cat IV safety rating for protection against severe electrical shocks
  • Capable of measuring AC/DC voltage up to 1000 volts and current up to 20 amperes
  • Waterproof design and resistant to harsh environmental conditions
  • Ability to measure temperature, resistance, capacitance, frequency, and diode testing
  • Large, readable display for use in low-light environments

Technical Specifications

Feature Value
Measurement Type True RMS
Max AC/DC Voltage 1000 volts
Max Current 20 amperes
Safety Rating Cat IV
Waterproof Yes
Temperature Measurement Yes
Capacitance Measurement Yes
Frequency Measurement Yes
Diode and Duty Cycle Testing Yes

Frequently Asked Questions

Is the Extech EX520 Cat IV True RMS Industrial Multimeter suitable for wet environments?

Yes, the EX520 model features a waterproof design and is intended for use in wet and challenging industrial conditions.

Does this device have temperature measurement capability?

Yes, the EX520 multimeter provides temperature measurement in addition to electrical measurements.

What is the benefit of True RMS in this device?

The True RMS feature allows the device to measure voltage and current of non-sinusoidal signals accurately, which is critical for modern electronic equipment.

Conclusion

The Extech EX520 Cat IV True RMS Industrial Multimeter offers an excellent combination of precision, safety, and durability, making it a top choice for electrical professionals and industry. This device meets troubleshooting and maintenance needs in the most challenging environmental conditions.

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Extech

Extech

United States

Extech is one of the most reputable international brands in the field of test and measurement equipm...

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