The ACI Series OSA Thermistor and RTD Sensors are designed specifically for HVAC system temperature control. The OSA sensors come in thermistor and RTD sensor curves compatible with most BAS systems available today. OSA sensors mount in a watertight box with weather shield and easy-mount tabs. The ACI OSA Sensor should be located on an outside wall facing north in the northern hemisphere. Using the tabs on the box, mount to the exterior wall using screws appropriate for the wall construction.
