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 OptiSciences CCM-300 Chlorophyll Content Meter Learn More Qubit Systems Q-G267 Flow Monitor and Gas Pump 1LPM Learn More Photon Systems Instruments N-Pen N 100 Learn More Spectrum Technologies LightScout UV Meter Learn More