Reliable Instruments Co. Offers Scientific & Analytical Instruments. Reliable Instruments Co. Offers Instruments & Consumables for Research, Teaching & Routine testing. The Scientific & Analytical Instruments include Analytical Balances, GLC, Spectrofluorophotometers, Polarimeter, Tintometers, Spectrophotometers Visible/ UV-VIS, Refractometer, CO2 Incubators, Viscosity meters, HPLC, Fermenter, Gel Documentation Systems, etc.