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Lutron CO and CO2 Meter


The Lutron LU-AQ9901SD is designed to measure air quality, it also measures CO, CO2, O2 levels, temperature and dew point. The measured data is recorded on an SD card in Excel format, where it can be further processed. The instrument can also be used as an indicator, and it also has the option of setting an alarm – a warning sound signal when the defined value is exceeded.

  • Multifunction: CO2 (carbon dioxide), CO (carbon monoxide), O2 (oxygen in air), humidity, temperature
  • CO2 measurement range: 0 to 4000 ppm x 1 ppm
  • O2 measurement range: 0 to 30.0% x 0.1%
  • CO measuring range: 0 to 1000 ppm x 1 ppm
  • Humidity measuring range: 10 to 95% RH
  • Dew point: -25.3 to 48.9 ° C, unit selection ° C / ° F
  • Temperature measurement range: 0 to 50 ° C, unit selection ° C / ° F
  • save the data into the SD memory card and can be download to the Excel, (or USB download and optional PC software)
  • Comes as kit with all 4 probes and carry case.


  • This Air Quality Monitor Alarm setting with beeper sound.
  • Complete set with 4 tests: CO2/Temp. test, O2/Temp. test, CO/Temp. probe, Humidity/Temp, test, fundamental meter, and the hard conveying case.
  • Sampling Time: 2 sec to 8 hours
  • Sensors: CO2: NDIR * Nondispersive infrared sensor, Humidity: Precision capacitance sensor, O2: Galvanic cell type, CO : Galvanic cell type, Temp. Precision thermistor
  • Data Hold: Freeze the display reading.
  • Memory: SD memory card. 1 GB to 16 GB.
  • Memory Recall: Maximum & Minimum value.
  • Data Output: RS 232/USB PC computer interface,
  • Power Supply : DC 1.5 V battery (AA) x 6 pcs
  • Dimension :177 X 68 X 45 mm, CO Probe: 150 x 38 x 38 mm, CO2 Probe: 190 x 38 x 28 mm, Humidity Probe: 197 mm in length, O2 Probe: 150 x 38 x 38 mm

Accessories Included:

  • Instruction manual, hard carrying case (CA-08), CO2 probe, Humidity probe, O2 probe, CO probe

Optional Accessories:

  • SD memory card (2 GB ), AC to DC 9V adapter, USB cable, USB-01, RS232 cable, UPCB-02, Data Acquisition software, SW-U801-WIN

Data Sheets

LU-AQ-9901SD_data Sheet