Yes, I have one. A Quantum Par meter. It cost me an arm and a leg.They make horticultural specific light meters. <PPF and PPFD (Photosynthetic Photon Flux Density) are the most relevant measurements of light for plants. They can assess the intensity of photosynthetically active radiation (PAR), which is the range of light that plants use.>
I thought they were talking about those lux meters that you can buy for like $75.