Pressure Transmitter with Microprocessor provides a 4-20mA output proportional to the input pressure. Pyro Electric Instruments Goa Pvt. Ltd. Manufactures Pressure Transmitter with Microprocessor. Pyro Electric Instruments Goa Pvt. Ltd. Is an ISO 9001:2000 and 9002 awarded company that also manufactures of Temperature & Pressure Gauges, Catering largely to process control applications in various industries. Pressure Transmitter with Microprocessor is loop powered [2 wire system] from a 24Vdc supply. The input pressure to the transmitter is applied to a metal diaphragm that transmits the pressure to the silicon pressure transducer using a silicone oil fill. Its ranges are available from 0 to 100mBar up to 0 to 1000 Bar in either gauge or absolute pressure.