50% CO2 - 100% CH4 Sampling Data Logger

50% CO2 - 100% CH4 Sampling Data Logger
50% CO2 - 100% CH4 Sampling Data Logger
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The portable Carbon Dioxide and Methane Sampling Data Logger lets you log these gas levels over time in inaccessible areas and closed samples via the built-in gas sample draw pump. Use it for:

  • Natural Gas Processing
  • Algae-Based BioFuel
  • Fermentation Monitoring & Validation
  • Agricultural CO2 Up-take Analysis

Inside the Sampling Data Logger is a battery-operated micro-pump connected to two tubing ports. The unit can be programmed to measure at specific intervals, draw gas for a programmable period of time from the inlet port, expel it from the outlet port, and log the CO2 and CH4 values with a time stamp. Later, the data can be retrieved via USB connection to a computer running our free DAS software.

By connecting tubing to the inlet, you can remotely sample gas, or by connecting tubing to both ports, you can create a closed-loop system and return the gas back to the original container. This makes the Sampling Data Logger perfect for controlled or measuring potentially dangerous high concentrations of CO2 and CH4 in biological applications over hours, or even days.

Free Easy-to-use GasLab® Software 

This device uses GasLab® software for setup, calibration, data logging, and real-time data analysis. GasLab® makes it easy to export data into a .CSV file that can be imported into any industry-standard software or spreadsheet. GasLab® runs on Windows XP or higher, and free to use with our products.

Download Latest Software Here


  • CO2 and CH4 Measurement: non-dispersive infrared (NDIR)
  • Range: CO2 0-50%, CH4 0-100%
  • Accuracy: ±3% > 50% of full range, ±5% < 50% of full range
  • Sampling Method: Tube sampling (0.30 l/min)
  • 60,000 data point memory
  • Measurement interval: 5 sec to 18 hours
  • Sensor Life Expectancy: > 15 years
  • Maintenance Interval: No maintenance required
  • Size: 5.75×5.6×1.3in (146×91×33mm)
  • Tubing sizes: 3/32" or 1/8"
  • 1,000 hour pump - upgrade available to 10,000 hour pump on request

LED Display

  • CO2 in % format (nn.nn%)
  • CH4 in % format (nn.nn%)
  • Logging On/Off indicator
  • % of Free Memory Remaining


  • 4 AA batteries (not included)
  • International wall power supply 6VDC (included)

Included Accessories

  • USB A to USB Mini Cable
  • 1/8" tubing 10 feet long
  • International wall mount power supply
  • Moisture trap
  • Particulate and hydrophobic filters
  • Assorted tubing fittings
  • High-Impact Carrying Case

System Requirements for Data Logging or Changing Defaults

  • Windows XP SP2 or newer
  • Microsoft .Net 3.5 Runtime Libraries


  • 1 Year

co2 data logger manual Manual (pdf)

Dimensional Drawings (pdf)