The Extech 382357 Clamp-On Ground Resistance Tester is a versatile and convenient tool for non-contact measurements of ground conductors. This tester allows you to accurately assess ground resistance without the need for auxiliary spikes or physical contact.The Extech 382357 features a True RMS AC Leakage current range of 0.2mA to 30A, providing precise measurements with a resolution of 1.000mA. This capability enables you to accurately assess and monitor leakage currents, ensuring the safety and reliability of your electrical systems.With its programmable datalogging function, the Extech 382357 can record up to 116 data points, allowing you to track and analyze ground resistance over time. This feature provides valuable insights into the performance and stability of your grounding systems.One of the key advantages of the Extech 382357 is its non-contact measurement capability. This means that you can measure ground resistance without the need to physically connect auxiliary spikes or probes. This feature offers convenience, efficiency, and enhanced safety during testing.The Extech 382357 is designed with user-friendly features and a clear display for easy operation. Its ergonomic design ensures comfortable handling during measurements, and the intuitive interface allows for quick and straightforward adjustments.