The Fluke 787B and 789 ProcessMeter™ double troubleshootingcapabilities by combining the power of a safety rated digitalmultimeter and mA loop calibrator into a single, compact test tool. Whether you only need to source and simulate mA or need a 24Vloop power supply, Fluke has a ProcessMeter™ test tool designedspecifically to meet your needs. Based on the trusted measurementcapabilities of the Fluke 87 DMM, the 787B and 789 add theability to measure, source and simulate mA with the accuracy andresolution you would expect from a Fluke mA loop calibrator, givingyou the ideal tool for troubleshooting and calibrating current loopapplications.