Gem Scientific provides a wide range of advanced analytical instruments from the worldwide electrochemistry leader, Hanna Instruments. Currently used all over the world in many sectors, including medical, life science and food applications, Hanna Instruments are ideal for getting accurate pH readings, checking the correct use of meters and electrodes or for quick food temperature tests. Our catalogue of Hanna Instruments includes easy to use handheld digital refractometers, benchtop PH meters, buffers, titrators, foodcare and probe thermometers. Discover more about our brands.