Fluke 787 ProcessMeter 1000V overload protection on V, Ohms, frequency, and 150V overload protection on mA, backed up by a 440 mA 1000V fuse Runs about 50 hours typical (measurement), 12 hours typical (sourcing 12 mA) on one 9-volt alkaline battery Clear LCD display with Backlight 25-Percent manual step plus auto step and auto ramp on MA output Simulate DC loop current with .05-Percent accuracy and 1-microamp resolution 1000V overload protection on V, ohms, frequency, and 150V overload protection on mA, backed up by a 440 mA 1000V fuse Runs about 50 hours typical (measurement), 12 hours typical (sourcing 12 mA) on one 9-Volt alkaline battery Clear LCD display with backlight