The Extech 382252-NIST is designed specifically for measuring earth ground resistance in three different ranges: 20Ω, 200Ω, and 2000Ω. This wide range allows you to tackle various applications and environments with ease. Whether you are working on electrical systems, grounding rods, or other grounding connections, this tester kit provides the flexibility and accuracy required for your tasks. In addition to earth ground resistance measurement, the Extech 382252 offers versatile functionality. It can also test AC/DC voltage, resistance, and continuity, making it a comprehensive tool for electrical testing. With automatic zero adjustment, you can ensure precise and reliable measurements every time, eliminating the need for manual adjustments and reducing potential errors. The kit includes all the necessary hardware to facilitate your measurements effectively. It comes equipped with probes and leads, allowing for easy and secure connections to the test points. The included carrying case ensures convenient transportation and storage of the tester and its accessories, keeping everything organized and protected. The Extech 382252 is built with quality and durability in mind. Its robust construction ensures long-lasting performance in demanding work environments. The intuitive interface and user-friendly design make it easy to operate, even for users with varying levels of experience. It includes NIST Certification.