Fluke Digital Multimeter (DMM).
The 8500A is a 6.5 digit laboratory digital multimeter (DMM) with ac average converter, ohms converter, IEEE 488, and switched front/rear inputs.
Options:
01 - Averaging Converter
02 - Ohms Converter
03 - AC and DC Current Converter
04 - Calibration Memory
05 - IEEE Interface Module
06 - Serial Interface Module
07 - Parallel Interface Module
08 - Isolation Module replaces the PCB jumper
09 - True RMS Converter
16 - Switched Front/Rear Inputs
17 - Parallel Front/Rear Inputs