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Sun System® PAR Meter comes with an integrated sensor to measure photosynthetic active radiation (PAR). Use inside with Sun System grow lights or outside with natural sunlight. Simple and easy to use. Compact size with integrated sensor. 1 year warranty.

Measuring PPF with Quantum Meter

Photosynthesis is driven by the number of photons between 400 and 700 nanometers (nm). This is called the Photosynthetic Photon Flux (PPF) and is measured in micromoles (µmol) per meters squared per second. PPF meters are commonly called quantum meters because a quantum refers to the amount of energy carried by a photon.

Measurement Range

  • 0 to 2999 µmol m