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Indoor Air Quality Meter

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Call number: Home Tools


  • 1 Sper Scientific Indoor Air Quality Meter


This instrument is ideal for monitoring indoor air quality in crowded public spaces with potentially high levels of CO2 (carbon dioxide) such as offices, factories, classrooms, hospitals and hotels. The same measurement parameters can also be used to test air from HVAC equipment. Backlit simultaneous display of CO2 level, humidity and air temperature, or the user may choose a rotating display of dew point and wet bulb temperature instead of air temperature. Also calculates TWA (Time Weighted Average) and STEL (Short-Term Exposure Limit). Simple user calibration of CO2 and RH. Features audible CO2 threshold alarms, min/max/ave, hold and a computer interface. NDIR (non-dispersive infrared) technology ensures long-term accuracy, stability and reliability.


  • Model: 800046
  • Air Temperature Range: 14 ~ 140º F (-10 ~ 60º C)
  • Air Temperature Accuracy: 0.9ºF (0.6ºC)
  • Air Temperature Resolution: 0.1
  • Dew Point Range: 8 ~ 140º F (-13.3 ~ 60º C)
  • Dew Point Resolution: 0.1
  • Wet Bulb Range: -100 ~ 140º F (-73.4 ~ 60º C)
  • Wet Bulb Resolution: 0.1
  • CO2 Range: 0-5000 ppm
  • CO2 Resolution: 1 ppm
  • CO2 Accuracy: ±30ppm±5%rdg


View Instructions (PDF)

Community Reviews

Kind of cool

This is a really nice idea, and it seemed easy enough to use. The only thing is I wish it had the instructions included with the tool because I wasn't sure exactly what I was supposed to be measuring. Also, it would be nice to have a comparison card so you could really see what your air levels were supposed to be compared to what they are, and it's not always easy to be online to read the manual.

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