These highly accurate, easy to operate instruments measure resistance with a resolution as fine as 0.1 micro-ohm. Digital micro-ohmmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 100 amps covering a multitude of applications that require precise low-resistance measurements.