The Fluke 707Loop Calibratoris a high performance solution for calibration, repair and maintenance of current loops. The new "Quick Click" knob making it extremely fast and easy to use. It features:One handed user interface with "Quick Click" detented knobmA sourcing, simulation and measurement0.015% accuracy and 0.001 mA resolutionSimultaneous mA and % of span displaySelectable step or ramp outputs24 V Loop supply with mA measure, including 250? HART resistor0-28 VDC measurement to check Loop VoltageEasy battery exchange without opening the caseCompact case with separate protective holsterThree year warranty