The 382357 is a clamp-on ground resistance tester designed to verify resistance of ground conductors and grids in cellular and communication tower installations. It enables non-contact measurements without the need for auxiliary spikes, featuring multiple measurement ranges from 0.025 O to 1500 O with resolutions varying from 0.002 O to 20 O depending on the range. The device also measures AC leakage current from 0.300 mA to 30.00 A with a test frequency of 1.667 kHz, and operates at CAT III 300V and CAT II safety ratings per EN 61010-1. With dimensions of 258 x 110 x 47 mm and a weight of 700 g, this portable meter is ideal for field technicians verifying ground system integrity in telecommunications and power distribution applications.