Myron L 4AO - 4-20mA Self/Remote-Powered Isolated Output Module
The 4-20mA option gives the Series II Monitor/controller the ability to send a signal very long distances with minimal interference and signal degradation. The output is an Isolated 4-20mA signal that corresponds to the full scale range of the Monitor/ controller into which it is installed. This output is easily configured to be either self-powered or remote-powered as required for your particular application.