Model: R9900 | UPC: 800837001634

Measures carbon dioxide (CO2), temperature, humidity, and automatically calculates dew point and wet bulb temperatures.

Datasheet Manual

REED R9900 Offers

This IAQ (indoor air quality) meter simultaneously monitors carbon dioxide, relative humidity, and temperature. The R9900 is capable of automatically calculating wet bulb and dew point temperatures as well as statistical TWA and STEL averages.

What’s included with the REED R9900

  • Indoor Air Quality Meter
  • Batteries
  • Hard Carrying Case


  • Triple LCD display simultaneously monitors carbon dioxide (CO2), relative humidity and temperature
  • Automatically calculates dew point and wet bulb
  • Calculates statistical weighted averages of TWA (8-hour time-weighted average) and STEL (15-minute short term exposure limit)
  • User-adjustable audible alarm
  • Data hold, Max/Min and average functions
  • Low battery indicator and auto shut off

Ideal Applications for the REED R9900

Environmental Monitoring in:

  • Schools
  • Office buildings
  • Greenhouses
  • Factories
  • Hotels
  • Hospitals
  • Areas where high levels of carbon dioxide are generated