Calibration box CS-5 kV, due to high-quality resistors, with very high accuracy class, perfectly suited to verify the indications of insulation resistance meter and is very good tool for training purposes. CS-5 kV may be used as a simulator of the insulation resistance of wires, cables or isolators. The device uses banana sockets with a diameter of 4 mm, which allows to perform in easy way the measurements of resistance using meters from Sonel's offer. In case of measuement using MIC famly meters with measurement voltage higher than 2.5 kV, to connect meter to Calibration box please use the crocodile clips and metal pins that are supplied with device.