The Y(II) meter was designed to provide an inexpensive way to measure the fast light adapted Y(II) or  ΔF/FM‘ protocol and to make it available to more people that need it.

Specification :

  • Y(II) or ΔF/FM’ with the option for FM’ correction according to Loriaux 2013 included. ETR, PAR, leaf temperature, relative humidity, leaf absorptance, FS, FM’ and FT.
  • Light sources : White LED saturation flash to 7,000 μmoles.
  • Sensors : 2 RGB sensors for measurement of leaf reflectance, leaf transmittance, and leaf absorptance, calibrated with standard.
  • Memory : 2 Gigabytes

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