- IMPORTANT: Receive in 4-6 weeks
- Measures photosynthetically active radiation (PAR) from 400 to 700 nm
- Range of 0 to 2,000 µmol·m-2·s-1
PAR / Quantum Light (400-700nm) The light that drives photosynthesis in plants is Photosynthetically Active Radiation, or PAR light. This is also referred to as Quantum light, because it is measured in units of moles striking an area over time. Though PAR light ranges from 400 to 700nm, the region brightest to human eyes is the area of least effect on plants. Measuring quantum light can tell you if your plants are getting a sufficient amount of usable light.
The Field Scout Light Meters are accurate to ±5%. Cosine
correction is accurate to ±3% at 45°, and ±7% at 80°.
Quantum Light Meters are calibrated to display PPFD. The meters
display PPFD in the range 0-1999 µmol m-2 s-1.