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atLEAF handheld chlorophyll meters
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Cahyo, Murti, Putra, Nuringtyas, Fabre, Montoro : "SPAD-502 and atLEAF CHL PLUS were closely correlated, hence both of the devices can substitute each other" Zhu, Tremblay, Liang : "There were significant correlations between SPAD or atLEAF values on the one hand and laboratory Chl content on the other hand" Gallinat, Garrison, Primack : "There is a very strong correlation between atLEAF and SPAD-502 chlorophyll readings" Mendoza-T., Juarez-L., Ontiveros-C., Sandoval-V., Alia-T., Alejo-S. : "atLEAF meter is currently more affordable than SPAD meter"

atLEAF CHL PLUS/BLUE Accuracy

  • Max error : -0.5 ... 0.5
  • Mean error : 0.2
  • Std Dev on error : 0.2
  • atLEAF CHL PLUS Repeatibility

  • Min value: 36.1
  • Max value: 36.2
  • Std Dev: 0.046
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    Zhu, J., Tremblay, N. and Liang

    "There were significant correlations between SPAD or atLEAF values on the one hand and laboratory Chl content on the other hand..."

    Cahyo, Murti, Putra, Nuringtyas, Fabre, Montoro

    "Rubber leaves index values observed by SPAD-502 and atLEAF CHL PLUS were closely correlated, hence both of the devices can substitute each other"

    Mark Lundy, Steve Wright, Steve Orloff, Robert Hutmacher

    "The AtLeaf meter successfully distinguished between wheat growing under different N and water conditions..."

    A. Gallinat, L. Garrison, and R. Primack

    "There is a very strong correlation between atLEAF and SPAD-502 chlorophyll readings for Vi Viburnum carlesii leaves. The point colors reflect the color of the leaf measured (R2=0.98)..."

    E.V. Novichonok, A.O. Novichonok, J.A. Kurbatova And E.F. Markovskaya

    "the atLEAF+ Chl meter is a cheap and convenient tool for a quick nondestructive estimate of the Chl content..."

    K. B. Hebbar , P. Subramanian, T. L. Sheena, K. Shwetha, P. Sugatha, M.Arivalagan ...

    "The atLeaf chlorophyll meter provided good estimates for chlorophyll concentrations in coconut..."

    Saturday, April 5, 2025