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 Qubit Systems Dissolved CO2 Systems Learn More Qubit Systems FL23 Algal CO2 Learn More Qubit Systems Q-S151 CO2 Analyzer 0-2000ppm Learn More Soil Moisture Specimen Holder for broad leaf Learn More