Profile: T & R Test Equipment Ltd. is a manufacturer of heavy current and high voltage electrical test equipment. We are an ISO 9001:2008 certified company. Our broad product range includes relay test equipment, primary current injection systems, micro-ohmmeters, DC cable test sets, and AC flash testers. Our 100ADM mk4 current injection system provides a flexible system for testing protective systems. It has an easy to understand panel layout, and a simple user interface. It keeps the familiar user interface of previous models, and adds a new metering system that accurately measures the RMS of a single cycle. Features of our high current micro-ohmmeter are listed as ultra lightweight, USB memory key for data storage, USB keyboard, pre-settable test current with three buttons to store user test currents, large back-lit liquid crystal display, universal supply voltage, and an optional current clamp.