1.Receive the on-site sliding resistance / potentiometer signal, transform it into standard signals such as 4-20mA, 0-5V, etc., which are 2.linear with the resistance, and output them to PLC, DCS or other secondary instruments. Built-in sensor constant voltage source. 2. Strong electromagnetic isolation, high accuracy, low temperature drift, small size 3. Reliable isolation of three ports of input, output and power