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Extech 382357 Clamp-On Ground Resistance Tester

Extech | Earth Tester

Extech 382357 Clamp-On Ground Resistance Tester

MPN / Part No: 382357
Price updated: Sep 24, 2026

The Extech 382357 Clamp-On Ground Resistance Tester, with the ability to measure current from 0.3 to 30 amps and resistance from 0.025 to 1500 ohms, is an ideal tool for electrical engineers for quick testing without circuit interruption. This device, with its professional design and high accuracy, ensures the safety and performance of grounding systems in industrial environments.

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Extech 382357 Clamp-On Ground Resistance Tester is an advanced and precise tool for measuring ground resistance and leakage current in electrical systems.

This device utilizes clamp technology, allowing for quick testing without the need to interrupt circuits or use auxiliary rods. With a resistance measurement range of 0.025 to 1500 ohms and a current range of 0.3 to 30 amps, this tester is designed for a variety of industrial and commercial applications.

This product, with its large display and practical features, enables engineers and technicians to accurately assess the condition of grounding systems.

Its ergonomic design and high resistance to environmental conditions make the Extech 382357 an ideal choice for fieldwork.

Key Features of Extech 382357 Clamp-On Ground Resistance Tester

  • Measures ground resistance without the need to interrupt circuits
  • Wide current measurement range (0.3 to 30 amps)
  • Ability to detect multiple parallel grounding paths
  • Large display with backlight
  • Clamp design for easy and quick use
  • High safety features for industrial environments

Technical Specifications

Feature Value
Resistance Range 0.025 to 1500 ohms
Current Range 0.3 to 30 amps
Measurement Type Clamp (non-contact)
Display Large LCD
Power Source Battery
Main Application Testing grounding systems

Frequently Asked Questions

Is this device suitable for testing complex grounding systems?

Yes, the Extech 382357, with its ability to detect multiple parallel grounding paths, is perfectly suitable for complex and industrial systems with multiple grounding connection points.

Does using the Extech 382357 Clamp-On Ground Resistance Tester require special technical skills?

This device is designed for ease of use, even for technicians with moderate experience; however, familiarity with electrical safety principles is recommended.

Does this device have calibration capabilities?

Yes, like all precision tools, this device requires periodic calibration to maintain measurement accuracy over time.

Conclusion

The Extech 382357 Clamp-On Ground Resistance Tester, combining high accuracy, speed, and safety, is a top choice for electrical engineers and maintenance teams. This device simplifies and ensures the testing process for grounding systems by eliminating the need for traditional and hazardous methods.

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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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