FOUR INSTRUMENTS IN ONE
■ Active bridge for accurate location of faults where the level of disturbing voltages are low
■ Passive bridge for location of faults where the level of disturbing voltages are high
■ Graaf fault locator for accurate fault location on totally water-soaked cable
■ Time Domain Reflectometer to find low impedance faults and splits causing cross talk between pairs

for more info please see this PDF data sheet