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Item number: M630W

Digital Low-Resistance Meter per EN 61557-4

Digital low-resistance measuring instrument per EN 61557-4 / VDE 0413-4 with cable reel and 30 m cable for measuring the resistance of protective conductors and equipotential bonding conductors
  • Digital Low-Resistance Meter per EN 61557-4
  • Digital Low-Resistance Meter per EN 61557-4

The Metraline RLO-Check is a low-resistance ohmmeter with digital display for hazard-free testing of line resistances up to 20 Ω in electrical installations with nominal voltages of up to 500 V.

The Metraline RLO-Check is suitable for quick and safe testing of large protective conductors, ground conductors and equipotential bonding conductors, as well as shielding and lightning protection systems.

The measured value appears at the digital display with red (no-go) or blue (go) background illumination. Values of less than 1 Ω can be additionally indicated by means of a buzzer.

Product Highlights

  • Battery-operated low-resistance ohmmeter
  • Including cable reel with 30 m cable
  • Automatic polarity reversal
  • Acoustic alarm
  • Optical alarm
  • Measurement cable compensation
  • Single-key operation
  • Manual calibration


The METRALINE RLO-CHECK is a measuring instrument for checking the continuity of protective conductors and equipotential bonding.



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