VBR-20 DLI Meter,Full Sun,Partial,Shade,Record Long Term Daily Light Integral,180 Days,MOL/m²/d

To judge if a plant got enough light, need to integrate a whole day's PAR. Test the mol of photons per square meters plants absorb day by day. The unit is mol/m²/d. View the DLI for each of the last 10 days. Help growers optimize growing conditions. Accurate, the PAR Sensor IC is from a famous Japan company. Rigorously calibrated in AquaHorti factory. OK for indoor and outdoor plants. Able to be sprayed with water. If you are in a different time zone, can refer to the instruction sheet to change the time.