Additional Features: 40-Channel Single-Ended Multiplexer 60 ch/s scanning Single-wire switching for common-low applications Built-in thermocouple reference junction Use the Agilent 34908A module for the Agilent 34970A Data Acquisition/Switch Unit for the greatest density in common-low applications, such as battery test, component characterization, and benchtop testing. Each module switches 40 one-wire inputs. All two-wire internal measurements except current are supported. The module low connection is isolated from earth and can float up to 300 V.