O2 meter

oxygen meter with a pump & data logger


The ESCM-505 Portable O2 Sampling Data Logger lets you log oxygen levels over time in inaccessible areas and closed samples via the built-in gas sample draw pump. Use it for

  • Fermentation monitoring & validation
  • Biological incubators
  • Agricultural O2 up take analysis
  • Modified Atmosphere Packaging (MAP)
  • Grain storage mold potential monitoring
  • O2 leak detection
  • Fire suppression system testing

Inside the Sampling Data Logger is a battery-operated micro-pump connected to two tubing ports. The unit can be programmed to automatically turn itself on (once every 15 seconds up to once every 18 hours), draw gas for a programmable period of time from the inlet port, expel it from the discharge port, and log the O2 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 modified atmosphere packaging (MAP), or measuring potentially dangerous Low concentrations of O2 in biological applications over hours, or even days.

The battery-operated, portable Sampling Data Logger only comes in a 0-25% O2 model. Model includes a data cable for programming and retrieving logged data, a back-lit LCD that changes color according to O2 levels, filters, fittings, tubing, and auxiliary international power supply.

  • Lightweight, easy-grip design
  • Separate Power On/Off Switch and Logging On/Off Switch to extend battery and pump life
  • Back-lit LCD display
  • Programmable CO2 level alarm
  • 15,000 data points in memory
  • Built-in 1,000-hour micro pump (upgrade to 10,000 hours on request)
  • Impact-resistant case, power supply, tubing/filter kit, and USB cable
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
GasLab® software

CO2Meter GasLab_grandeThis 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.


  • O2 Measurement: fluorescence quenching / UV light
  • Range: 0 to 25%
  • Accuracy: ±2% of full scale or better
  • Resolution: 0.01%
  • Temperature: -30°C to +60°C
  • Relative Humidity: 0.1-99% (non-condensing)
  • Sampling Method: Tube sampling (0.30 liters/minute)
  • 15,000 measurement capacity
  • Measurement interval 2 second to 18 hours
  • Sensor Life Expectancy: > 5 years
  • Calibration certificate (included)
  • 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
  • O2 in percentage format (nn.nn%) for 25%
  • Logging On/Off
  • Percentage of memory free
  • 4 AA batteries (not included)
  • International wall power supply 6VDC (included)
system requirements for data logging or changing defaults
  • Windows XP SP2 or newer
  • Microsoft .Net 3.5 Runtime Libraries
  • 1 Year

manual & docs

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