Reed R9910SD Data Logging Indoor Air Quality Meter (Replaced SD-9901)

Original price was: $1,195.00.Current price is: $1,075.50.

SKU: R9910SD

In stock


Reed R9910SD Data Logging Indoor Air Quality Meter

(Replaced Reed SD-9901)

Reed R9910SD Datasheet (PDF)

Real-time data logger with integrated SD memory card measures/records oxygen, carbon dioxide, carbon monoxide, temperature and humidity.


REED R9910SD Offers

The R9910SD is capable of recording readings from 3 probes simultaneously and features Data hold, Max/Min functions, and an easy-to-read backlit LCD display. Using a SD card (max 16GB), a user can manually record up to 99 readings or automatically by selecting a desired sampling rate from 1 sec to 8 hours. Quickly generate an Excel file with raw data, all without the use of software. Optional accessories include a tripod and AC adapter for continuous long-term monitoring.


  • Measures oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), temperature and humidity
  • Records up to 3 readings simultaneously
  • User adjustable audible alarms
  • User selectable unit of measure (°C or °F)
  • Data hold and Max/Min functions
  • Real-time data logger with integrated SD memory card
  • User selectable sampling rate from 2 secs to 8 hrs
  • Easy-to-read backlit LCD display
  • Tripod mount for long-term monitoring
  • Low battery indicator and auto shut off


What’s included with the REED R9910SD

  • Data Logging Air Quality Meter
  • Humidity Probe
  • Carbon Monoxide Probe
  • Carbon Dioxide Probe
  • Oxygen Probe
  • Hard Carrying Case
  • Batteries


Ideal Applications for the REED R9910SD

Environmental Monitoring in:

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


REED R9910SD Specifications

Measuring Ranges 32 to 122.0°F (0 to 50.0°C)
Dew Point: -13.5 to 120.1°F (-25.3 to 48.9°C)
Wet Bulb: -6.9 to 122.0°F (-21.6 to 50°C)
Accuracy ±1.5°F (±0.8°C)
Resolution 0.1°F/°C
Measuring Ranges 5 to 95%RH
Accuracy >70%RH: ±(3% rdg + 1%RH)
<70%RH: ±3%RH
Resolution 0.1%RH
Measuring Ranges 0 to 4,000 ppm
Accuracy <999 ppm: ±40 ppm
>1,000 ppm ≤3000 ppm: ±5% rdg
>3,000 ppm: ±250 ppm
Resolution 1 ppm
Measuring Ranges 0 to 1,000 ppm
Accuracy ±(5% + 2 ppm)
Resolution 1 ppm
Measuring Ranges 0 to 30% O2
Accuracy ±(1% + 0.2% O2)
Resolution 0.10%
General Specifications
Alarm Threshold <18% O2
Response Time 1 second
Display 4-digit dual LCD
Backlit Display Yes
Data Hold Yes
Min Yes
Max Yes
Datalogging Capabilities Yes
Real-Time Clock and Date Stamp Yes
Selectable Sampling Rate Yes (1 second to 8 hours, 59 minutes and 59 seconds)
External Memory Yes, expandable up to 16GB with SD card (optional)
Auto Shut-off Yes (after 10 minutes/off)
Kick Stand Yes
Tripod Mountable Yes
Low Battery Indicator Yes
Power Supply 6 x AA Batteries or AC Adapter (optional)
Data Output Yes (RS-232)
Product Certifications CE
Operating Temperature 32 to 122°F (0 to 50°C)
Storage Temperature 14 to 140°F (-10 to 60°C)
Operating Humidity Range 10 to 85%
Dimensions Instrument: 7.0 x 2.7 x 1.8″ (177 x 68 x 45mm)
Humidity Probe Length: 7.8″ (197mm)
CO Probe Length: 5.9″ (150mm)
CO2 Probe Length: 7.5″ (190mm)
O2 Probe Length: 5.9″ (150mm)
Weight 0.8lb (350g)

Additional information

Weight 3 lbs
Dimensions 14 × 14 × 9 in

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