Indoor Air Quality Meter

IAQ-Calc® Indoor Air Quality Meter Model 7515

Model: 7515
IAQ Meter, CO2

The 7515 is a cost-effective IAQ meter for carbon dioxide (CO2) measurements.

TSI's IAQ-Calc™ Indoor Air Quality Meter 7515 is an outstanding instrument for investigating and monitoring indoor air quality or IAQ.


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

Features and Benefits

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

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