Marposs India Pvt. Ltd. Manufactures Air-to-Electronic Converter. Marposs India Pvt. Ltd. Is an ISO 9001:14001 certified company. The Air-to-Electronic Converter is a device which is part of a measuring system based on pneumatic technology, following principles of pneumo electronic measure. The air converter, with its different adjusting possibilities, is usable with plugs, snap gauges and pneumatic measuring stations characterized by a wide group of nozzle diameters and gap nozzle - measuring parts.