The Fluke 1630-2 Earth Ground Clamp Meter is a rugged, stakeless ground loop and AC leakage current tester. It measures earth ground resistance (from 0.025 to 1500 ohms) and identifies AC leakage (0.2 mA to 1000 mA) without disconnecting the ground stake, making it ideal for fast, safe electrical troubleshooting in industrial and commercial environments.