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  • Accuracy:
    • 0.15% O2 absolute (O2 control)
    • 0.1 ppm or 1% of reading (CO2 trace)
    • 0.5 ppm or 1% of reading (CO, N2O, and CH4 trace)
    • 1% of full scale range (CO, CO2, and CH4 %)
  • Sensing technologies:
    • Paramagnetic
    • Infrared
    • Gas filter correlation
  • 4 relays standard
  • 4 alarms per sensor


The Servomex SERVOPRO MultiExact 4200 Multi-Gas Analyzer is designed specifically for the industrial gases market with the ability to measure up to four gas streams simultaneously. It includes an intuitive, user-friendly LCD interface and a full suite of outputs including RS232/RS485 serial data output and Modbus digital communications. Simplified ongoing maintenance is delivered through easy intuitive integrated menu configuration while the non-depleting, low drift sensors ensure extended calibration intervals.

Gases Detected

  • Oxygen (O2)
  • Carbon dioxide (CO2)
  • Nitrous oxide (N2O)
  • Carbon monoxide (CO)
  • Methane (CH4)