Accurate, reliable, robust & fast, the Si-CA 120 Combustion Analyzer offers the latest in Combustion Analysis technology.

Read the Application notes

O2 & CO sensors (calculated CO2)
Auto-Zero in the Flue
Field Replaceable Sensors
Large Color Graphical Display
Automatic, True High-Efficiency Calculations for All Condensing Systems
iOS and Android Mobile Applications

Measure details

  • Units
    °F, %, ppm, hPa
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Measuring ranges

  • O2
    0.00 % ... 25.00 %
  • CO-H2 compensated w/ built-in NOx filter
    0.00 ppm ... 8000.00 ppm
  • CO2
    0.00 % ... 99.90 %
  • Ambient temperature
    -4.00 °F ... 2285.00 °F
  • Gas temperature
    -4.00 °F ... 2285.00 °F
  • Differential temperature
    -4.00 °F ... 2285.00 °F
  • Pressure/Draft
    -10.00 hPa ... 200.00 hPa
  • Excess air
    0.00 % ... 850.00 %
  • Efficiency
    0.00 % ... 100.00 %
  • Efficiency (condensation)
    0.00 % ... 120.00 %
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Technical details

  • Parameters
    Gas analysis
  • Displays
    Color graphical display
  • IP Protection
    IP 42
  • Battery life
    12 hours
  • Standards
    NF EN 50379-1
    NF EN 50379-2
    2011/65/EU RoHS II
    2012/19/EU WEEE
    2014/30/EU EMC
    2014/35/EU Low Voltage
  • Wireless connection
    1
  • Power supply
    3.7 V, 5200 mAh Li-Ion battery pack with internal protection circuit
  • Usb
    Yes
  • Sensors
    CO
    O2
  • Auto zero
    Yes
  • Printer
    Remote
  • Combustion condensate
    Remote
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Instrument Dimensions

  • Length
    271 mm
  • Width
    92 mm
  • Height
    66 mm
  • Weight
    900 g
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Operating temperature

  • Min
    0.00 °F
  • Max
    113.00 °F
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Storage temperature

  • Min
    -4.00 °F
  • Max
    122.00 °F
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1 O2 & CO (calculated CO2)
1 Long Lasting Rechargeable Battery & AC Charger
1 Gas Sampling Probe & Hose
1 Water Trap with Filter Cartridge
1 Magnetic Protective Housing
1 PC Software & USB Cable
1 Calibration Certificate
1 Carrying Case
1 Quick Start Guide