Core grounding digital impact tester

(chinacoal07)digital impact tester,Core impact tester,core grounding impact testerCore grounding digital impact testerProduct Introduction:1. Before using this instrument must carefully read the operating manual.2. Operation of the instrument should have a general electrical equipment or instruments to use common sense.3. This instrument can be used indoor and outdoor, but should avoid rain, corrosive gases, dust too thick, heat, direct sunlight and other places.4. Instrument