METRALINE RLO/CHECK. Digital low-resistance measuring device according to EN 61557-4 /0413-4 with cable drum and 30m cable for measuring the resistance of protective conductors and equipotential bonding conductors. The Metraline RLO-Check is a digitally displaying low-resistance measuring device for the safe testing of line resistances of up to 20 in electrical systems with nominal voltages of up to 500V. Metraline RLO-Check is suitable for the quick and safe testing of larger protective conductors, earthing and equipotential bonding conductors, as well as shielding and lightning protection systems. The measured value is shown on the red (poor) or blue (good) backlit digital display. In addition, a value
