The Standard in

Plant Stress Measurement



Laboratory system for Multi-sample soil respiration measurements

The next generation of multi-sample analysis systems. The EGA60 is a fully integrated system, featuring an accurate and reliable CO2 analyzer that measures CO2 to 1ppm in a range of 0-2000ppm, and measures H20 to 0.1 mbar in a range of 0-75mbars. It is combined with a versatile gas multiplexer in one compact unit. Designed for measurements during long-term, continuous experiments.


  • Dual CO2 / H2O analysis
  • Compact and fully integrated
  • Instruments are available with multiplexers for 10, 15, 20 or 24 different samples
  • Fully programmable
  • Constant flow maintains sample integrity
  • Integral data storage
  • SD card data storage and USB output
  • 400ml sample columns are available with sample stands
  • Integral pump with adjustable flow rate
  • The new, fully integrated EGA60 is easy to install and significantly reduces experimental set up times compared to earlier systems.

    A single EGA60 system can sequentially analyze up to 24 soil samples. The EGA60 is available with 10, 15, 20 or 24 channels. One channel being reserved for a zero column.

    The EGA60 has been designed to be the most user-friendly soil respiration system ever. Complete functionality is achieved with just 5 keys driving a series of menus. No separate "bolt on" PC or laptop is required. Sampling times of individual channels can be set together with total experimental times.

    Flow in each channel may be automatically programmed. Importantly a constant flow is maintained around the system to all sample channels, at all times. This ensures that the integrity of each sample is preserved by preventing the build up of high CO2 concentrations within any sample chamber.

  • CO2:

    0-2000 ppm, 1ppm resolution Infrared gas analysis


    0-75 mbar, 0.1 mbar resolution

    Two laser trimmed, fast response water vapor sensors

    Flow control:

    0 to 500 ml/min on each channel

    Test duration:

    Set by time or number of measurement cycles

    Dwell time:

    2 seconds to 999 minutes on each channel

    Warm up time:

    5 minutes @ 20oC


    240 x 64 graphic LED backlit LCD

    Recorded data:

    Removable SD cards typically store 16 million sets of data on a 1Gb card

    Power supply:

    230/110V 50/60Hz

    Electrical outputs:

    USB connection: Mini-B

    RS232: 9 Pin "D" type

    Analog inputs:

    Seven 0-5V or 0-20 mA inputs

    Operating temperature range:

    5oC to 45oC


    27 x 25 x 15cm



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Opti-Sciences, Inc.     8 Winn Avenue      Hudson NH 03051       USA      (603)883-4400

Opti-Sciences, Inc.

8 Winn Ave

Hudson, NH 03051, USA

Phone: (603) 883-4400

Fax: (603) 883-4410