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METREL MI 2086 Eurotest 61557 Multifunctional Digital Measuring InstrumentAdvanced, multifunctional digital measuring instrument for low voltage electrical installation safety testing in accordance with IEC / EN 61557. Best selling installation tester in Europe!MEASURING FUNCTIONS- DC insulation resistance with test voltages up to 1000V- PE conductor continuity test- Loop and Line impedance also without RCD triggering- RCD test- Varistor test- Illumination- Phase sequence in 3-phase systems- Measurements on earthling and lightning systems with included 2-clamp method (without junctions disassembling).OTHER FEATURES• Electrical power and consumption measurement,• current and voltage harmonics measurement,• phase angle,• frequency,• contact voltage measure-ments,• under wall installation tracing,• fuses locating,• clamp current measurement up to 200 A,• leakage current measurement from 0.2 mA trms onwards,• low resistance continuous measurement.