About the Hioki RM3548 Multimeter, HighPrecision Portable Resistance MilliOhmmeter The Hioki RM3548 Multimeter, HighPrecision Portable Resistance MilliOhmmeter is a high performance low resistance tester that includes a choice of interfaces to meet your measurement needs. A majority of the necessary parts and accessories from the Hioki catalog are listed on our website. Please be aware of what you are ordering before placing an order for the item. If you have any questions or do not find a specific Hioki product please let us know, and we will help you to get the correct part for your application.