Tests insulation of wires, cables, transformers and electrical motors. Comes as a complete kit including test leads and PC software. Selectable test voltages 250V, 500V and 1000V. Programmable timer to perform the Dielectric Absorption Ratio Test. Sensitive Ohmmeter for checking resistance of motor windings. Built in voltmeter. Fast and easy to use, rugged durable design. Internal memory to store measurements for future reference. Data download to PC.