Difference between Transmitter and Sensor

2.We have used different types of pressure sensor, but the transmitter has been always same. The pressure sensor detects the pressure signal, generally referring to the primary meter. The pressure transmitter combines the primary meter and the secondary meter, and converts the detected signal into the standard 4-20, 0-20 Ma or 0-5V, 0-10V signal. You can understand it vividly as follows: the sensor transmits the pressure signal To "feel", the transmitter not only feels, but also "becomes" the standard signal and "sends" it out.