Used OPTO 22 SNAP-AITM-4i Analog Input Module

OPTO-22 SNAP-AIMA-8 8 Channel -20mA to +20mA Analog Current Input Module

ANALOG DEVICES 6B12 ISOLATED INPUT MODULE

OPTO-22 SNAP-AITM-8 8-Channel Type or Thermocouple or Analog Input Module

ADAM ADAM-6017 8-channel Isolated Analog Input Module Tested

RIM-IAC5 OPTO 22 Standard AC Input Module

ALLEN BRADLEY FLEX I/O 1794-IF-4I ISOLATED ANALOG INPUT MODULE