Learn more about the milestones of our growth in the History of Megger timeline below.
1889
Founding
Sydney Evershed invents the insulation tester, or the “Megger”, and made possible the safe installation and working of electrical distribution systems. These ground-breaking instruments are the direct antecedents of every insulation tester in use in the world today
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1902
Featured Exhibition
1902 Megger....world’s oldest insulation tester!
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1903
Trademark
Registered as a trademark
Megger is registered as a trademark by Sydney Evershed and Ernest Vignoles.
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1923
The First Multimeter
The First Multimeter
The AVO Meter, the world’s first multimeter, is invented by Donald MacAdie and AVO Limited is formed The AVOmeter will go on to be manufactured and sold till 2008
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1923
Multimeters through the years
The AVO Meter, the world’s first multimeter, is invented by Donald MacAdie and AVO Limited is formed.
The AVOmeter will go on to be manufactured and sold till 2008.
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1936
The James G. Biddle Co
James G. Biddle Co, an importer of Megger units, is incorporated in the US and develops battery test and cable fault location equipment.
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1939-45
Documents and Historic Photos
AVO on Active Servce
Explore past documentation through the years.
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1946
The first commercial cable fault locator
The first commercial cable fault location device is developed at Biddle.
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1951
Multi-Amp
Multi-Amp is founded in Dallas, Texas, and focuses on the development of relay and circuit breaker test equipment.
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1966
The millionth AVO Meter
The millionth AVO Meter (the Model 8 Mark 3, manufactured in the summer of 1965 in Dover, England) is sold.
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1968
Evershed & Vignoles (Megger)
AVO Limited acquires Evershed & Vignoles (Megger)
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1976
First Portable Relay Tester
Programma launches the first portable relay tester in the world
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1984
The first microprocessor-controlled circuit breaker analyser
The first microprocessor-controlled circuit breaker analyser is developed by Programma.
The first 3 phase relay tester is developed by Multi-Amp
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1988
The first portable dielectric frequency response analyser
The first portable dielectric frequency response analyser for insulation diagnostics is developed by WaBtech (later acquired by Programma)
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1995
Joining Together
Megger, Biddle, and Multi-Amp join together to become AVO International
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1996
Founded by Trevor Lord
AVO New Zealand is founded by Trevor Lord with the full support of the board and CEO of the then AVO International company.
The key strategy behind the formation was that AVO New Zealand would be a key incubator of ideas and initiatives that would be fed back and disseminated through AVO International world wide.
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2000
First Technical Conference
AVO New Zealand runs the first of many technical conferences.
These become legendary forums in which industry leaders from New Zealand power utilities came together over 3 days and discussed innovative testing technologies and concepts. The last of these is run in Hamilton in 2018.
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2002
AVO International
AVO International is renamed to Megger
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2007
Programma Joins Megger
Programma (Sweden), a company of experts that specialise in transformers and circuit breakers, joins Megger Group Megger develops the first portable cable fault location device with more than 2000 J
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2008
The last AVO Model 8 sold
The last AVO Model 8 is sold ending a 85 year legacy.
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2010
Christchurch Earthquake
7.2 magnitude Christchurch Earthquake devastates Christchurch AVO New Zealand donates HV cable fault locating equipment to Connetics.
This assists in restoring power to the city which we call home… Kia Kaha!
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2012
Seba KMT (Germany)
Seba KMT (Germany), a global leader in cable testing, joins Megger Group
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2018
Baker Instruments
Baker Instruments, innovators in the electrical testing of motors and generators, joins Megger Group.
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2019
New Office
Power Diagnostix, an authority and supplier of products and services dedicated to the measurement and monitoring of partial discharge on high voltage installations, joins Megger Group
AVO New Zealand moves into spacious new offices – which soon sit empty as COVID lockdowns force staff to work from home for most of 2020.
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2022
Rebrand
AVO New Zealand brand refreshment roles out.
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2023
Globelink Partnership
AVO New Zealand signs a partnership agreement with Globelink – greatly improving customer access to our Low Voltage test equipment.
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2024
AVO New Zealand and Megger
AVO New Zealand and Megger reaffirm their dual commitment to lifting the New Zealand power industries to an internationally enviable position.
(Pictured from left to right – Trevor Lord Director, AVO New Zealand / Jürgen Göbelhaider, Chief Commercial Officer, Megger / Daniel Hurley, General Manager, AVO New Zealand / Ted Kim, Director APAC, Megger / Paul Knock, Managing Director, Megger Australia.
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Ducters - Low Resistance Ohmeters
Ducters - Low Resistance Ohmeters
Evershed & Vignoles developed the original ‘Ducter’ and were one of the companies that evolved into Megger. Interestingly, Evershed & Vignoles also developed the World’s first high resistance ohmmeter in 1889.
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Earth Testers
Earth Testers
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Insulation Bridges - Telecom Test Sets
Insulation Bridges - Telecom Test Sets
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Insulation Testers greater than 1000V
Insulation Testers greater than 1000V
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Insulation Testers less than 1000V
Insulation Testers less than 1000V
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Miscellaneous
Miscellaneous
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Multimeter Accessories
Multimeter Accessories
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RCD Testers
RCD Testers
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RF Test Sets
RF Test Sets
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Salinity Testers
Salinity Testers
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Transformer Ohmmeter
Transformer Ohmmeter
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Line Earth Loop Testers
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Light Meters
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LCR Bridge
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