33420A
  • 7-1/2 digits resolution
  • 100 pV / 100 nOhm sensitivity
  • 1 mV to 100 V ranges
  • 1.3 nVrms / 8 nVpp noise performance
  • Two-channel programmable voltage input with difference and ration functions
  • Direct SPRT, RTD, Thermistor, and Thermocouple measurements
  • GPIB, RS-232, SCPI, and Keithley 181 languages
  • Three-year warranty