Since 1960, Unitron has been a leading supplier for the defense-aerospace, aviation and industrial markets. Dedicated to prov ... iding our customers with the latest state-of-the-art technology, Unitron’s product line includes Aircraft Ground Support Equipment, such as ground power units (GPUs) and preconditioned air (PCA) systems, Facility Power Systems, Onboard Frequency Converters, and Laboratory Power Supplies. read more