DY4100 Digital Ground Resistance TesterBenefits and why you need it- Quickly test earth resistance of various earth systems including power systems and electrical installations to verify safety and compliance.- Measure Earth Ground Resistance with selectable ranges: 0, 20, 200, 2000 ohms.- Measure Earth Voltage from 0 to 30 V with an accuracy of ±3% plus 5.- More complete functions with higher accuracy, providing convenient and reliable operation.- Outdoor use ready due to a dust and wet proof structure, suitable for field conditions.Key specifications- Earth Ground Resistance ranges: 0 / 20 / 200 / 2000 Ω- Earth Voltage range: 0–30 V- Earth Voltage accuracy: ±3% + 5- Structure: dust and wet proof for outdoor useTest capabilities- Tests earth resistance of various earth systems including power systems- Tests lightning conductors as well as resistance value of low resistance conductors- AC voltage testUse scenarios- New installation commissioning: verify earth ground resistance at multiple grounding points in a substation to ensure safety and performance before going online.- Lightning protection maintenance: assess the resistance of lightning conductors and verify ground path integrity for reliable protection.- Outdoor equipment testing: conduct earth resistance and voltage measurements at outdoor sites (dusty or wet environments) to ensure safe operation of electrical equipment and systems.Notes- The description preserves the original model DY4100 and its stated functions, ranges, and outdoor durability features.