I'm not recommending that you buy anything for sale on Ebat but you can learn a lot about the different test equipment product lines, and if your lucky find a deal.
Biddle and AVO are good companies that make digital units. As for Romex and most other cables and cable assemblies, if you call the manufacturer you will find that it is rated for 600V and it can be meggered at 500V. More on megger results later.
