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Introducing Extech's Earth Ground Resistance Tester GRT350, a powerful tool designed for testing and verifying earth ground systems in commercial, industrial, and residential settings. The GRT350 offers an extensive range of 2 k to 0.020 resolution (0.10 ohm), making it perfect for both heavy-duty applications and intricate tasks. This robust device features an 820 Hz operating frequency, enabling users to perform accurate measurements in the field quickly and efficiently. Its versatile design includes four auxiliary earth bars, which make it suitable for a wide range of projects. The GRT350 also comes equipped with a user-friendly LCD display for easy reading, test leads with alligator clips, and hard carrying case for convenient storage and transportation. With its high-quality components and dependable performance, the GRT350 is ideal for professionals looking to maintain safe and efficient earth ground systems in various industries such as electrical, utility, construction, and engineering.