Sonel Test and Measurement

Sonel MRU-21

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.

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Sonel MRU-30

The Sonel MRU-30 earth resistance meter has both 3-pole, 4-pole methods. The selective earth resistance measurement can be made with clamp so no influence from parallel earths and no opening of rusty junctions is needed.

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Sonel MRU-30 PRO

The Sonel MRU-30 earth resistance meter has both 3-pole, 4-pole methods. The selective earth resistance measurement can be made with clamp so no influence from parallel earths and no opening of rusty junctions is needed.

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Sonel MZC-20E

The small Sonel MZC-20E meter allows for precise measurement of short circuit loop impedance in networks of different voltage ratings. With the use of this instrument, it is possible to test network voltage up to 440V. The device is especially useful for installers and measuring engineers providing services in single-

Sonel MZC-304F

The Sonel MZC-304F is dedicated to performing measurements in single and multi-family buildings, office buildings, industrial plants and any other places equipped with low voltage electrical systems. In addition, the meter is intended for maintenance personnel working on objects, where fault currents reach 4.4kA (measured according to EN 61557). MZC-304F