The Si-AQ Expert is the ideal tool for testing indoor air quality in warehouses and office buildings. It can measure concentrations of multiple different hazardous of gases and compounds that can affect air quality and worker safety.

Customize Up To 7 Gases
Temp., %RH, & Barometric Pressure Included
Real-Time Continuous Data Logging
Active Internal Sampling Pump
Large Internal Memory (2,000 Tests)
Wireless Communication with PC & Printer

    Measure details

    • Units
      ft/sec, inH₂O, mg/m³, ppb, °F, μg/m³, °C, % RH, %, ppm, m/s, mbar
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    Measuring ranges

    • Ambient Temperature
      -40.00 °F ... 257.00 °F
    • Ambient Temperature
      -40.00 °C ... 125.00 °C
    • Relative Humidity
      5.00 % RH ... 95.00 % RH
    • Barometric Pressure
      260.00 mbar ... 1260.00 mbar
    • CO2
      0.00 ppm ... 5000.00 ppm
    • CO2 High
      0.00 % ... 20.00 %
    • CO
      0.00 ppm ... 200.00 ppm
    • VOC
      0.00 ppb ... 20000.00 ppb
    • VOC
      0.00 mcg/m³ ... 46000.00 mcg/m³
    • VOC
      0.00 ppm ... 200.00 ppm
    • VOC
      0.00 mg/m³ ... 460.00 mg/m³
    • O2
      0.00 % ... 25.00 %
    • O3 (Ozone)
      0.00 ppb ... 5000.00 ppb
    • H2S
      0.00 ppm ... 100.00 ppm
    • CH2O (Formaldehyde)
      0.00 ppb ... 10000.00 ppb
    • NO
      0.00 ppm ... 250.00 ppm
    • NO2
      0.00 ppm ... 20.00 ppm
    • SO2
      0.00 ppm ... 20.00 ppm
    • Differential Pressure
      -40.00 inHâ‚‚O ... 40.00 inHâ‚‚O
    • Differential Pressure
      -100.00 mbar ... 100.00 mbar
    • Temperature Type K T1
      0.00 °C ... 1100.00 °C
    • Temperature Type K T1
      0.00 °F ... 2000.00 °F
    • Air Velocity
      0.00 m/s ... 91.00 m/s
    • Air Velocity
      0.00 ft/sec ... 300.00 ft/sec
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    Technical details

    • Battery life
      12 hours
    • Power supply
      12 Volt, 8 AH rechargeable Li- Ion battery pack
    • Protective cover
      No
    • Interchangeable module
      No
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    Instrument Dimensions

    • Length
      254 mm
    • Width
      102 mm
    • Height
      279 mm
    • Weight
      7000 g
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    1 PC Software with USB Cable
    1 Rechargeable Battery & AC Charger
    1 Factory Calibration Certificate
    1 User manual