Amprobe LCR55A [3026976] Handheld Component Tester. The Amprobe LCR55A is the ultimate compnent checker that measures inductance, capacitance, resistance, transistors, diodes and microwave diodes. The LCR55A performs several functions making it a great tool for any technicians tool kit. The Amprobe LCR55A tester provides fast and accurate readings over wide ranges. Test results are easy to read on oversized, digital display. The LCR55A comes complete with test leads and threaded alligator clips, users manual and battery. The tester also features a data hold and Max hold function as well as the auto power off function to save battery life.