LightScout Quantum Meter

Measure the light used for plant growth. PAR is a more valuable measurement than foot-candles as it measures only the light used by plants for photosynthesis

• Measures photosynthetically active radiation (PAR) from 400 to 700 nm
• Measurement of PAR (Photosynthetically Active Radiation) in units of μmol/m/second
• Hold function to freeze data in dark places and view later
• Stores 100 data points in manual log and recall
• Low battery indicator; Auto power off
• Maximum, minimum and average for multiple site analysis
• High accuracy for 400nm to 700nm under all light sources, including LED
• Reset and Zeroing functions included

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.