Magnetic Stirrer Photon Systems Instruments Categories Crops , Photosynthesis, Chlorophyll & Respiration Brochure Send Enquiry Overview PSI Magnetic Stirrer designed to provide continuous stirring with little speed deviation and minimal heat build-up. A handy accessory to the PSI Fluorometers. Back Our Related Products Regent Instruments WinSCANOPY Learn More OptiSciences OS30p+- Hand Held Chlorophyll Fluorometer Learn More Spectrum Technologies IPM Scope Learn More PP Systems WMA-5 CO2 Gas Analyzer Learn More