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 Qubit Systems Gas Flowmeters Learn More Spectrum Technologies Macroscopes Learn More Photon Systems Instruments Rover FC 900-R Learn More Spectrum Technologies Handheld Plant Sap Press Learn More