GFL-1a OptiSciences Categories Crops , Photosynthesis, Chlorophyll & Respiration Brochure Send Enquiry Overview Compact GFL liquid fluorometer for field studies GFL-1a provides easily interchangeable filter sets Easy conversion from discrete measuring samples to a flow through chamber, a water resistant case, and very high sensitivity Back Our Related Products Spectrum Technologies Handheld Plant Sap Press Learn More Eijkelkamp 19.20 Field Plantwater Status Console Learn More Spectrum Technologies FieldScout TCM 500 NDVI Turf Color Meter Learn More Soil Moisture G4 Stem Sleeve Sealing Kit Learn More