Description
The Aaon R81550 Outside Air Temperature Sensor 10K Ohm measures ambient thermal conditions surrounding building exteriors. The unit converts atmospheric heat levels into electrical resistance values that control systems interpret for operational adjustments. A thermistor element exhibits predictable ohmic changes proportional to environmental warmth, providing continuous feedback about outdoor climate states in HVAC systems. The sensor mounts on external walls or rooftop equipment, exposing the sensing component to prevailing weather. Electronic controllers read resistance variations, modulating ventilation rates, economizer dampers, and mechanical cooling based on exterior versus interior differentials.
