Lock In Amplifier

SRS Stanford Research Systems SR850 DSP lock in amplifier 100 khz Refurbished

Fully functional in our test lab. Would like to sell it because we upgraded to the SR865A unit.

Come with printed manual.

You can find all technical information about this unit on SRS website.

The SR850 is a digital lock-in amplifier based on an innovative DSP (Digital Signal Processing) architecture. The SR850 boasts a number of significant performance advantages over traditional lock-in amplifiers—higher dynamic reserve, lower drift, lower distortion, and dramatically higher phase resolution.

  • 1 mHz to 102.4 kHz range
  • >100 dB dynamic reserve
  • 0.001 degree phase resolution
  • Time constants from 10 µs to 30 ks
    (up to 24 dB/oct rolloff)
  • Auto-gain, -phase, -reserve and -offset
  • Data logging (up to 65k samples)
  • Smoothing, curve fitting & statistics
  • GPIB & RS-232

International buyers shall contact us first before buying.

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