The Agilent 3468B is an autoranging 5 1/2 to 3 1/2 digit DMM's, with the five functions of DC volts, true RMS AC volts, 2- and 4- wire ohms, DC current and true RMS AC current.
They are low-cost, highly reliable DMM's which can be completely calibrated electronically, either manually from the front panel or remotely in an automatic calibration system.
Remote calibration is made possible by the built-in HP-IL (Hewlett-Packard Interface Loop) interface which provides complete programmability of functions, ranges and modifiers.
The Agilent 3468B is a fully programmable with the HP-IL, a two-wire serial interface, and the HP-41C/CV handheld calculators or the more powerful HP Series 80 computers.