Outside Air Temperature Sensor (OAT) | Thermometrics

Thermometrics Outside Air Temperature Sensor (OAT) measures the temperature outside of a vehicle’s passenger compartment. It relays the outside air temperature to the controller of the automatic HVAC system. The controller uses this temperature to help control the interior temperature of the vehicle. The sensor also provides the vehicle occupants with temperature readings from outside the car. This information is particularly useful when driving under near-freezing or freezing conditions. The sensor is usually mounted inside or near the front bumper or in the side mirror.