An instrument for measuring the resistance of electrical insulation.
- ‘Run a continuity to-ground test with a Megger tester, which patently says on the outside ‘Not to be used on computer equipment’’
- ‘All Megger products meet the highest standards for quality, reliability and safety.’
- ‘The 13 Meggers lamps initially distributed in 1951 were capable of calibration to a precision of 1 part in 100 million, as opposed to the 1 part in 10 million possible with the standard meter.’
- ‘The Megger ® MFT 1502/2 tester is a combined electrical circuit tester which includes test features for insulation testing, earth loop impedance tests, RCD testing and continuity testing.’
Early 20th century: perhaps from megohm.