Default Display Unitµmol of chlorophyll per m2 of leaf surface
Optional Display UnitsCCI, SPAD
Measurement Area63.9 mm2 (9 mm standard diameter), 19.6 mm2 (5 mm diameter with reducer)
Resolution± 10 µmol m-2 chlorophyll concentration using generic equation
Linearity± 1 %
Repeatability± 1 %
Sample Acquisition TimeLess than 3 s
Storage Capacity8 MB for up to 160,000 data measurements
Internal GPS Storage8 MB for up to 94,000 data measurements
User Interface50 mm by 15 mm graphic display screen, 8 push buttons for control and data manipulation
Data OutputMini-B USB port provided for main data transfer
Measured VariablesRatio of optical transmission at 931 nm to optical transmission of 653 nm
Operating Temperature0 to 50 C
Temperature DriftTemperature compensated source and detector circuitry over full range