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 OS1p Chlorophyll Fluorometer Learn More Others CID Portable Laser Leaf Area Meter (CI-202) Learn More Qubit Systems Q-G265 Flow Monitor 2 L Learn More Spectrum Technologies Handheld Refractometers Learn More