Quantum PAR (Photosynthetically Active Radiation) Meter
Measure the light intensity in the Photosynthetically Active Radiation light spectrum from 400 to 700 nanometers. This is the spectrum most plants use to photosynthesize (excluding UV light). Use this sensor to design & plan or troubleshoot your indoor and outdoor plant / aquatic systems. You can even combine this with the CO2 sensor for a photosynthesis experiment.