The Apogee DLI meter spot-checks light intensity and automatically records daily light integral (DLI) and photoperiod, accurate under all light sources including LEDs.Choose the full-spectrum model for PAR (400-700 nm) or the ePAR model for the extended 400-750 nm range that captures far-red.Available Options Full-Spectrum PAR, 400-700 nm (DLI-500) ePAR, 400-750 nm including far-red (DLI-600) Key Features Automatic DLI and photoperiod recording Accurate under sunlight, HPS, and LEDs IP65 rugged, handheld, simple operation Made in the USA and backed by Apogee's industry-leading warranty and support. Ideal Applications Canopy light and DLI spot checks Photoperiod verification Greenhouse and indoor cultivation
