The AR Model FM7004 is a versatile electric and magnetic field monitoring system which performs all measurement display and control functions for field related testing. The FM7004 accepts inputs from up to 4 isotropic Field Probes which are all sold separately to match the test application. The FM7004 field monitor provides three digital interfaces (IEEE-488, USB 2.0, and RS-232) and a highly readable, user configurable, graphic Liquid Crystal Display. The monitor is menu driven and can be controlled from the front panel or remotely through any of the interfaces. The FM7004 displays up to four probe readings simultaneously, in any combination of the five "E" field or two "H" field 7000 series probes. Readings from each axis, plus the composite reading, are displayed simultaneously. The FM7004 recognizes each attached 7000 series probe (FP, FH,FL) and automatically displays the proper decimal places and units. Any faults that occur will be logged and the unit is programmed to be self correcting when possible. As a software driven instrument, field monitor software upgrades can be made through the USB port.