Fangrui Product Details Please Note: The Physical Slightly Color Difference Or Difference, Does Not Affect The Use, Please Do Not Mind, Thank You! Capability To Measure Light Intensities Accurately Across A Broad Range, Making It A Vital Tool In Where Light Quality And Intensity Directly Impact Biological Processes. Ensures That The Par Meters Sensor Is Completely Protected From Dust And Can Withstand Continuous Immersion In Water. Accurate Light Measurement Is Essential In Studying Natural Ecosystems, Understanding How Changes In Light Conditions Affect Plant Communities, And Monitoring The Health Of Habitats. Ppfd Measurement Repeatability: 1 Mol/m/sec Measurement Range: 0~4000 Mol/m/sec Display Resolution: 0.1 Mol/m2/sec (0~999); 1 Mol/m/sec (1000~4000) Cut-on Wavelength: 400 10nm Cut-off Wavelength: 700 10nm Data Logging Function: Record Up To 100 Groups Of Data Operating Environment 32f To 122f (0c To 50c); 0~, Non-condensing Storage Environment -4f To 140f (-20c To 60c); 0~, Non-c