AMPTEC 720A Digital Micro-Ohmmeter Available at discount pricing, the AMPTEC 720A Micro-Ohmmeter is an affordable 7 range, 4-Wire Kelvin based product that is used to test electrical resistance on a wide variety of applications including winding resistance, contact resistance, and component testing. Ohmic resolutions vary from 10uΩ to 10Ω, The 720A micro-ohmmeter has