The Sonel MRU-21 is a 3-pole earth resistance meter capable of the measurement of continuity of equipotential bondings and protective conductors with auto-zero function – with a test current of 200mA. Resistance measurement is also possible using the 2-pole method.
Sonel MRU-21
Description
Possible Measurements:
- Earth resistance measurements with 3-pole method.
- Measurement of continuity of equipotential bondings and protective conductors with auto-zero function – with current 200mA.
- Resistance measurement using 2-pole method.




