CIRAS-3 Portable Photosynthesis System

Fastest & most accurate mobile system for simultaneous leaf gas exchange & chlorophyll fluorescence measurement.

  • Small footprint and lightweight–truly mobile, the first of its kind

  • Internal, rechargeable Li-ion batteries for up to 12 hours operation

  • 4 independent, non-dispersive infrared gas analyzers (IRGAs) for both CO2 and H2O

  • Automatic and programmable control of CO2, H2O, temperature, and light

  • Large, full color, 7.0″ transflective LCD for field use and optimized viewing angle

  • Unlimited data storage (internal memory and thumb drives)

  • Flexible and versatile user interface

  • Powerful software

  • Range of accessories for chlorophyll fluorescence, soil respiration, canopy assimilation and insect respiration

Analysis Method Non-dispersive infrared, configured as an absolute absorptiometer with microprocessor control of linearization. Four independent gas analyzers simultaneously measure absolute CO2 and H2O for both the reference and analysis gas streams. All measurements corrected for temperature and pressure.
CO2 Measurement Range 0 – 10000 µmol mol-1
CO2 Precision 0.1 µmol mol-1 at 400 µmol mol-1
CO2 Control Range 0 – 2000 µmol mol-1
H2O Measurement Range 0 – 75 mb
H2O Precision 0.01 mb at 10 mb