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.

Read the Application notes

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

  • Température ambiante
    -40.00 °F ... 257.00 °F
  • Température ambiante
    -40.00 °C ... 125.00 °C
  • Humidité relative
    5.00 % RH ... 95.00 % RH
  • Pression atmosphérique
    260.00 mbar ... 1260.00 mbar
  • CO2
    0.00 ppm ... 5000.00 ppm
  • CO2 haute échelle
    0.00 % ... 20.00 %
  • CO
    0.00 ppm ... 200.00 ppm
  • VOC
    0.00 ppb ... 20000.00 ppb
  • VOC
    0.00 μg/m³ ... 46000.00 μg/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 (Formaldéhyde)
    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
  • Pression différentielle
    0.00 inH2O ... 32.00 inH2O
  • Pression différentielle
    0.00 mbar ... 80.00 mbar
  • Température Type K T1
    0.00 °C ... 1100.00 °C
  • Température Type K T1
    0.00 °F ... 2000.00 °F
  • Vitesse d'air (calculée)
    0.00 m/s ... 91.00 m/s
  • Vitesse d'air (calculée)
    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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1 PC Software with USB Cable
1 Rechargeable Battery & AC Charger
1 Factory Calibration Certificate
1 User manual