EYZAO EJD-3 Series Intelligent Ground Resistance Monitor adopts the commonly used two-wire method, three-wire method and loop method to monitor the change of ground network resistance value in real time, with high measurement accuracy.It is suitable for automatic online monitoring of lightning protection and grounding network resistance of electric power tower, cultural relics and ancient buildings, petrochemical industry, communication base station, substation and distribution station, rail transportation, data center, lightning tower, hospital, etc. It can realize the early warning and maintenance of grounding network failure, and ensure the compliance, reliability and safety of lightning protection and grounding system.