Feature

●Show the umol/(㎡s) of UVA, Blue, Green, Red, and Far Red for your light seperately.
●Accurate for any lights.
●Within a telescopic Rod inside the package, can help to test photon flux at the top of plant, or photon flux above the distant plant.
●Data logger function for 400 points.
●Long time use. 3 AAA can be used for more than 100hours.


Description

PAR UVA Far Red uml/(㎡s)PAR UVA Far Red uml/(㎡s)

What is the difference between PAR and Biologically-Active Photon Flux?

Photosynthetically Active RadiationPhotosynthetically Active Radiation

In summary, while PAR specifically refers to the range of light wavelengths essential for photosynthesis (400-700 nm), biologically-active photon flux encompasses a wider range of wavelengths that can impact various biological processes. PAR is a subset of biologically-active photon flux, and the two terms are often used in the context of plant biology and horticulture to quantify and understand how light affects plant growth and development.