188-8377, Keithley, Keithley 2400 Series Source Meter, 200 mV → 1000 V, 1-Channel, 10 nA → 1 A, 20 W Output, Brand Keithley, Series 2400, Source Meter Function Current, Resistance, Voltage Keithley 2400 Series Source Meter, 200 mV → 1000 V, 1-Channel, 10 nA → 1 A, 20 W Output