See if plants are getting the care they need easily with the new miniPPM photosynthesis reader. Measurements are taken in under a second, and are based on a plant’s chlorophyll fluorescence, a weak optical signal emitted by the plant. The reader can tell you if your herbicide is effectively killing weeds, or if it’s damaging plants. The instrument also shows if plants are stressed due to excess light or water shortage. The more advanced miniPPM-300 measures a complete photosynthesis light curve and produces a report to characterize the growth properties of a species or variety.