The Evershed and Vignoles 100V Megger insulation resistance tester is a very old but reliable testing tool made by the well-known brand Megger in the United Kingdom. This unit has a test voltage range of 0-100 and is designed to accurately measure insulation resistance. Perfect for businesses and industrial settings, this Megger unit is a valuable asset for ensuring quality and safety in electrical systems. Don't know if this is working? but it winds up and the metre moves. not sure of the age? but looks old and in good condition.
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