

Earth & Resistivity Testers
The EM4058 earth tester is a digital, microprocessor-controlled instrument that allows for measuring earth resistance and ground resistivity (using Wenner's method), as well as detecting parasitic voltages present in the ground. This instrument is suitable for measuring earth systems in power substations, industries, distribution networks, etc., according to IEC 61557-5.
The MTD2000B digital earth tester is designed to measure earth resistance, soil resistivity, and spurious voltages caused by parasitic currents in the soil. It is ideal for quick and easy measurement of grounding resistance in various installations, including residential, industrial buildings, hospitals, lightning rods, antennas, and substations. Soil resistivity measurement enables soil stratification, optimizing complex grounding systems.
The MTD20KWR digital earth tester allows for the measurement of earth resistances, soil specific resistivity, and spurious voltages caused by parasitic voltages present in the soil.
TENTECH TM25t Grounding Resistance Meter – Designed for high-frequency grounding resistance measurements of power transmission towers without disconnecting the ground wire. Using a 25 kHz test current, it accurately isolates the resistance of the surveyed tower, ensuring reliable results even in interconnected systems. Built for durability, TM25t is ideal for field use in harsh environments, making it a robust and essential tool for power transmission maintenance.
The MRU-200 GPS
is the unique meter in the market which uses all measurement methods. Three types of the measurement impulse (4/10μs; 8/20μs; 10/350μs) GPS coordinates of the measurement are stored in meter memory.
The MRU-200
is the only meter allowing for the measurement of impedance to earth of lightning protection earthing systems. With the use of the impulse method (without the necessity for disconnecting the measured earthing systems),
The MRU-120
meter allows for performing earthing measurements with the use of the two-clamp method without additional rods. Earth resistance measurment with 3-pole,4-pole method
The MRU-30
earth resistance measurement with 3-pole, 4-pole method, Selective earth resistance measurement with clamp (no influence from parallel earths; no opening of rusty junctions is needed),
The MRU-21
both the MRU-20 and MRU-21 meters have improved immunity to unfavourable operating conditions. Selection of maximal measurement voltage (25 V or 50 V).
The MRU-20
measurement of continuity of equipotential bondings and protective conductors with auto-zero function - with current 200mA, Earth resistance measurement with 3-pole method,
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