Transmitter (transmitter) is the output signal of the sensor is converted to a signal that can be recognized by the controller (or the non-power sensor input into an electric signal while amplifying the remote measurement and control in order to supply a signal source) of the converter. Together constitute the sensor and transmitter monitoring source is automatically controlled. Different physical quantities require different sensors and the corresponding transmitter. Many types of transmitters used in industrial instrumentation above the main transmitter temperature transmitter, pressure transmitter, flow transmitter, current transducer, voltage transducer and so on. Many different types of transmitters Honeywell differential pressure transmitter, in general, is a signal emitted by the transmitter to the secondary instrument of the secondary instrument display measurement data. In "Automatic Control Theory" in the United States Honeywell agent transmitter is converted sensor output signal can be identified as a controller signal converter. As sometimes the sensor output signal common because most modern sensors has been common controller may receive a signal, this signal may not be directly converted to the identified transmitter controller. Therefore, the "transmitter" meaning the traditional sense should be: "The sensor output signal is converted to a controller or measuring instruments can be the instrument of acceptance of the standard signal." In automatic control: Source -> Sensors -> Transmitter -> Operational Controller -> Actuator -> control output. Honeywell agents, Honeywell, Honeywell provided by the Jinan-Technology Co., Ltd. Jinan Hua Hui Technology Co., Ltd. (www.cnhuahui.com/) strong, credible, in Jinan, Shandong pressure instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the China-Technology and you hand into the brilliant, for a better future!