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Keithley 6487: Precision Picoammeter and Voltage Source with GPIB and RS-232
Keithley 6487 Picoammeter/Voltage Source: Measure currents down to femtoamps and source voltages up to 100V with GPIB and RS-232 interfaces for automated testing.
$4,641.00 -
Keithley 6485 Picoammeter: Unparalleled Precision with 10fA Resolution
Keithley 6485 Picoammeter: 10fA Resolution, 5.5 Digits, 20mA, GPIB/RS232, 6400 Series
$2,114.00