PAR meter hack $30 | Measure PAR accurately with a with cheap Amazon Lux meter | I have calibrated a cheap Amazon Lux meter to a professional PAR sensor, the Apogee SQ500. .
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Amazon Büchel zestaw lampek rowerowych 30LUX LED Seattle, bateria litowo-jonowa, ładowarka USB, zgodne z niemieckimi wytycznymi prawa drogowego, srebr - Ceneo.pl
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