The TDR10002 is a hand held, compact Time Domain Reflectometer for locating faults on metallic cables. It has a minimum resolution of 0.1m0.3ft and a 3km9kft maximum range depending on Velocity factor selected and cable type. Four output impedances are available (25, 50, 75, and 100 ohms) and a velocity factor between 0.30 and 0.99 will meet any cable test requirements