BK Precision Milli-Ohmmeter Milli-Ohmmeters, or Milliohmmeters / Milliohm Meters, are designed to measure low resistance at high accuracy confirming the value and integrity of any electrical circuit and connection. These meters may be used to evaluate component or circuit resistance in PC board resistance in laboratories and research and design departments, motor winding opens and shorts, transformers, heating elements, contact resistances of switches and connectors or low resistance connections for bonding.