Carbon Dioxide CO2 Meter


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TSI’s Model 7515 IAQ-CALC™ Meter is a cost-effective carbon dioxide CO2 meter for investigating and monitoring building air quality and checking ventilation. The sampling function records multiple point measurements, and an optional portable printer provides hard copy documentation.


  • Indoor air quality monitor with low-drift NDIR CO2 sensor
  • Easy to use, accurate and reliable CO2 meter
  • Two-line display shows air quality parameters simultaneously


  • CO2 Sensor Type: Dual-wavelength NDIR (non-dispersive infrared)
  • Range: 0 to 5000 ppm
  • Accuracy: ±3.0% of reading or ±50 ppm, whichever is greater
  • Resolution: 1 ppm
  • Response Time: 20 seconds
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