Electronic equipment for testing and controlling jet aircraft engines and avionics - namely, test equipment consoles, high resolution rate meters, jet engine portable analyzers, aircraft radio control head test and alignment units; Aerospace ground equipment for testing engines after overhaul - namely, adaptor kits for test stands; Electronic equipment for testing rotating machinery used in the pipeline, chemical, paper, food, and petroleum process industries - namely, engine annunciator units, digital tachometers, turbine topping units, vibration monitors, preventative maintenance monitors, bearing testers, single and dual lubrication monitors, temperature scanners, digital pressure standard units, and printed circuit boards