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 Skye Instruments Digital Plant Moisture System Learn More Hansatech Instruments FMS 2 Chlorophyll Fluorimeter Learn More Qubit Systems G400 Gas Mixing System Learn More Q-S161 RH/Temp. Sensor Learn More