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IAQ-Calc Indoor Air Quality Meters 7535

Recommended Replacement


Product Details

This unit has been discontinued as of December 31, 2011.

TSI's IAQ-Calc™ Indoor Air Quality Meter 7535 is an outstanding instrument for investigating and monitoring indoor air quality (IAQ). The 7535 model is a cost-effective meter for carbon dioxide (CO2) measurements. The proprietary TSI LogDat2 software permits easy transfer of data to a computer. Data can be reviewed on-screen, or downloaded to a computer for easy report generation. Statistics function displays average, maximum and minimum values, and the number of recorded samples.

Features and Benefits

  • Low-drift NDIR CO2 sensor for stable, accurate readings
  • Sampling function records multiple point measurements
  • Ergonomic, overmolded case design


  • Verify building HVAC system performance
  • Examine building IAQ conditions to optimize worker productivity
  • Comply with regulations and guidelines

Included Items

  • Instrument
  • Hard carrying-case
  • (4) AA alkaline batteries
  • Operation and service manual
  • NIST calibration certificate
  • LogDat2™ downloading software with USB cable

Download Software


  • How should I dispose of empty calibration gas cylinders?
    Calibration gas cylinders supplied by TSI are disposable. You may be required to dispose of these cylinders as hazardous waste. Refer to local, state, or federal regulations.

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