MEDI has been in Northern California since 1948, making us the longest running company in the area. We sell and service medical equipment such as audiometers, tympanometers, vision screeners, spirometers, sound level meters, noise dosimeters, otoscopes, breath alcohol analyzers, EKG machines and other medical diagnostic systems.MEDI performs required annual calibrations for audiometric testing equipment, as described by the OSHA, ANSI and state guidelines. We calibrate all makes and models of audiometers.