The PAR meter in your pocket! The Photone (previously named Korona) app allows to effectively and accurately measure your grow lights' illuminance in Lux or fc and PAR / PPFD in µmol/m2/s or as DLI with industrial grade accuracy.

Tests with various grow lights prove that Photone repeatedly reaches the best-in-class light measurement accuracy with error rates down to less than a few percent against a $500 professional light meter.

Download now for free (Android and iOS): [ Ссылка ]

Learn how Photone achieved this level of accuracy and what to do to achieve maximum accuracy in your own measurements in our white paper here: [ Ссылка ]

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