An Electrical Signal Transmitter is a device used to convert electrical parameters such as current or voltage into standardized output signals for monitoring, control, and data transmission. It includes two main types: the Current Transmitter and the Voltage Transmitter. A current transmitter converts measured AC or DC current into signals like 4–20 mA or 0–10 V, while a voltage transmitter performs a similar function for voltage measurement. These transmitters ensure accurate, isolated, and interference-free signal transmission over long distances. They play a crucial role in industrial automation, power systems, energy monitoring, and process control. By providing reliable data to control systems such as PLCs or SCADA, electrical signal transmitters enhance operational efficiency, enable real-time monitoring, and improve safety. Their compact design, stability, and compatibility with various sensors make them essential components in modern electrical and industrial measurement systems.