These plug-in I/O modules integrate data to/from other devices and are field expandable. They provide added functions and increased versatility for any of the Acuvim II Series. These increased functions can be enabled by simply snapping on the module to the back of either meter and can work in conjunction with two other extension modules (cannot be paired with the same module). Modules range from 6 to 4 Digital Inputs, and can have Digital Output, Relay Output, Analog Input, or Analog Output.
