Sonel MIC-2501 Insulation Resistance Meter

Sonel MIC-2501 Insulation Resistance Meter

SKU: MIC-2501

Measure insulation resistance up to 1 TΩ with the Sonel MIC-2501 insulation resistance meter. Packed with versatile features, this meter boasts a robust casing with IP65 protection, low battery consumption, and rechargeability during measurements. It’s an indispensable tool for various applications, including industrial inspections, catenary networks, and residential setups. Electricians benefit from its use in maintenance tasks, motor and cable testing, and street lighting assessments. The MIC-2501 also aids in photovoltaic system construction and maintenance, while serving telecom and heating network installers for pre-insulated pipe alarm control.

Product Features:

  • Measurement voltage range: 100 to 2500 V, adjustable in 100 V steps.
  • Continuous reading of insulation resistance or leakage current.
  • Automatic discharge of object capacitance after insulation measurement.
  • Sound signals every five seconds for precise time tracking.
  • Timed measurements at 15, 60, and 600 seconds for absorption coefficients (Ab/PI/DAR) and polarization index (PI).
  • Display of actual measurement voltage during testing.
  • Protection against measuring live objects.


  • Versatile applications, including residential construction and inspection of industrial systems and traction networks.
  • Ideal for electricians in maintenance, motor testing, cable evaluation, street lighting, and photovoltaic system work.
  • Suitable for telecom installers and heating network operators requiring insulated pipe alarm checks.


  • Measures insulation resistance using test voltage up to 2500 V.
  • Auto-discharge of cable load upon measurement completion.
  • Measures continuity of protective conductors and equipotential bonding (>200 mA).
  • Built-in voltmeter for AC and DC voltages up to 750 V.
  • Extensive memory stores nearly 12,000 measurement results.


  • Prolonged operation on a single battery recharge.
  • Option to recharge during measurements from external sources like a 12 V/2 Ah power bank.

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