Earth Resistance & Ground Testers
Marmonix earth resistance testers help you verify that grounding and earthing systems are safe, effective, and compliant with electrical standards. Our range includes clamp-on ground testers for fast, stakeless measurements and full earth and soil resistivity testers supporting 2-wire, 3-wire, and 4-wire methods.
Proper earth testing protects people and equipment from faults, lightning, and static, and is essential for substations, towers, lightning-protection systems, and industrial installations. Marmonix testers measure earth resistance across wide ranges with high resolution, store hundreds of timestamped results, and display readings on clear colour screens for easy field reporting.
Looking for an insulation resistance tester to check cable and motor insulation? Our testing instruments also cover insulation and continuity measurement for complete electrical safety testing. Browse the Marmonix earth resistance tester range below to compare measurement methods, ranges, and storage capacity, and select the right ground tester for your site.
Read our guide: Best Earth Resistance Testers in 2026
