0V to 28V; 0mA to 24mA; 0.15% accuracy The Fluke 707 loop calibrator is a high performance solution for calibration, repair and maintenance of current loops. The "Quick Click" knob makes it extremely fast and easy to use. The Fluke 707 features mA sourcing, simulation and measurement with 0.02% accuracy and 0.001 mA resolution. The Fluke 707 can simultaneously display mA and % of span readings and has selectable step or ramp outputs. The Fluke 707 has a 24V loop supply with mA measure and 0V DC to 28V DC measurement to check loop voltage. The removable battery door makes for quick battery replacement.