[ke0me]

For those not familiar with the brand name, here is info from the website:
megger.us

For over 100 years, Megger has been the premier provider of electric test equipment and measuring instruments for electrical power applications. The company was founded in 1889 in England as Evershed & Vignoles and over the years has been known by several names, most recently, AVO International. In 2002, the company decided to change its name to Megger, which is what many people have called it all along. Today, Megger enjoys an outstanding reputation in the areas of insulation testing, low resistance and ground resistance testing, and a wide variety of electrical contractor maintenance tools such as multimeters, portable appliance testers and clamp-on meters.

So, they cover the spectrum from low resistance to high, hence the nickname "megger" as related to the testing done.