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.

Technical Data sheet User manual Simplified manual
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 inH₂O ... 40.00 inH₂O
  • 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
thermal-printer
Wireless Printer
Si-AQ PC Software
Si-AQ PC Software
IAQ Monitors FAQ