The Keithley 155 Null Detector-Microvoltmeter covers the measurement range 1 µV to 1000 V. Battery powered. ±2% of full scale. Common Mode Rejection is equivalent to 140 dB. Input resistance 100 Mohms, 3-1 kV range.
Mirror backed meter eliminates parallax
Manufacturer support and calibration available
Battery operation for high isolation
The zero center analog readout makes it easy to see trend lines, approaches to zero and small changes in readings, regardless of polarity
Isolated analog output allows for hard copy or archival download to data acquisition systems, chart recorders and plotters
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