The Fluke Model 8100A Digital Multimeter is a versatile, accurate instrument, which measures ac and dc voltage in four ranges to 1000 volts and ohms in five ranges to 10 megohms. Standard features of the Model 8100A include full guarding, a switched two-pole active filter, autopolarity, pushbutton function and range selection, and full four-digit readout plus “1 ” for overranging. Fluke’s unique Recirculating-Remainder (R^)A/D conversion technique enables multiple use of discrete and integrated components for the various operating modes, thereby reducing parts count and power consumption while increasing reliability. Accessories and options for the Model 8100A include the rechargeable battery pack (Option -01), High Frequency Probe, High Voltage Probe, Switched AC/DC Current Shunts, Front Panel Dust Cover, and Rack Mount Kit. A detailed description of the battery option and each accessory is given in Section VI of the manual.