Action I/Q™ DIN Rail Mount Signal Conditioners, Isolators, & Alarms (AC Powered, 4-Wire) The Action I/Q Series of signal conditioners have wide ranging field configurable inputs and outputs. These DC, RTD, T/C, potentiometer, bridge/strain gauge, AC and frequency input devices incorporate TouchCalTM technology, which simplifies calibration and allows more than 90% adjustment of zero and span.