What is the difference about sensor and transmitter

1. Transmitter is equivalent to signal amplifier and signal converter. AC220V transmitter provides DC10V bridge voltage to the sensor, then receives feedback signal, amplifies and outputs 0V ~ 10V voltage or current signal. There are also small DC24V transmitters that are nearly the same size as the sensor and are sometimes installed together. In general, transmitters power sensors and amplify signals. The sensor only collects signals; for example, a strain gauge converts a displacement signal into a resistance signal. Of course, some sensors without power, such as thermocouples and piezoelectric ceramics, are usually used without power.

GE-201 Industry Pressure Transmitter