0.1~1000 Ohm 2% 750V Lightning Rod Lightning Detector Digital Earth Low Tester Victor VC4105B Earth Resistance Tester VICTOR 4105B Ground Resistance Tester 1 this Digital Ground Resistance Tester is a new generation of electrical test instruments, beautiful and trendy styles and practical; 2 full-featured, high accuracy, easy to operate, reliable, dustproof moisture-proof structure, more suitable for field use. 3 can be used to measure a variety of power systems, electrical equipment, lightning protection equipment, grounding system, grounding resistance, it can measure AC voltage.