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Keithley 237 High Voltage Source Measure Unit $2400.00
Keithley Model 617 Programmable Electrometer / Voltage Source $400.00
Fluke 731B DC Voltage Reference Standard 10V, 1V, 1.018V $599.99
Trek 668B High Voltage Reference / Power Supply $1750.00
Renogy 500A Battery Monitor High and Low Voltage Programmable Alarm 500A Shunt $85.59
USB Type C Multimeter Current Meter Voltmeter Voltage Digital Tester Detector US $18.90
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