Megger MPU690 Electricians Proving Unit

Good practice requires that two pole voltage detectors are proved to be functioning correctly on a known voltage source, both before and after they have used to verify that a circuit is not live. The Megger MPU690 Proving Unit provides a portable battery operated voltage source that can verify the correct functioning of a two pole voltage detectors. 5 stepped nominal output voltages, Automatic operation, High output power suitable for test lamps. Extended battery life, Magnetic base, Rugged case.