Search Results Model/Catalog Number: 6470   Model 6470-B [Catalog No. 2135.01] The Digital Ground Resistance Tester Model 6470 performs grounding resistance, earth coupling measurement, soil resistivity and bonding tests. Model 6470-B Kit - 150 ft. [Catalog No. 2135.02] Ground Resistance Tester Model 6470 Kit - 150 ft. Model 6470-B Kit - 300 ft. [Catalog No. 2135.03] Ground Resistance Tester Model 6470 Kit - 300 ft. Model 6470-B Kit - 500 ft. [Catalog No. 2135.04] Ground Resistance Tester Model 6470 Kit - 500 ft. Model 6470-B [Catalog No. 2135.01] The Digital Ground Resistance Tester Model 6470 performs grounding resistance, earth coupling measurement, soil resistivity and bonding tests.