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4-Point Ground Resistance Testers
 
Model 4620 [Catalog No. 2130.43]
Ground Resistance Tester Model 4620
(Analog, 3-Point)
Model 4620 Kit - 150 ft. [Catalog No. 2135.19]
Ground Resistance Tester Model 4620 Kit - 150 ft.
(Model 4620 & Cat. #2135.35)
Model 4620 Kit - 300 ft. [Catalog No. 2135.20]
Ground Resistance Tester Model 4620 Kit - 300 ft.
(Model 4620 & Cat. #2135.36)
Model 4620 Kit - 500 ft. [Catalog No. 2135.21]
Ground Resistance Tester Model 4620 Kit - 500 ft.
(Model 4620 & Cat. #2135.37)
Model 4630 [Catalog No. 2130.44]
Ground Resistance Tester Model 4630
(Digital, 3-Point)
Model 4630 Kit - 150 ft. [Catalog No. 2135.22]
Ground Resistance Tester Model 4630 Kit - 150 ft.
(Model 4630 & Cat. #2135.35)
Model 4630 Kit - 300 ft. [Catalog No. 2135.23]
Ground Resistance Tester Model 4630 Kit - 300 ft.
(Model 4630 & Cat. #2135.36)
Model 4630 Kit - 500 ft. [Catalog No. 2135.24]
Ground Resistance Tester Model 4630 Kit - 500 ft.
(Model 4630 & Cat. #2135.37)
Model 4500 [Catalog No. 450.100]
(Discontinued, replaced by Model 6471)