Genuine Daikin 2483586 Humidity Sensor is the sensor that reads the moisture level of the air, giving the indoor unit the reading it uses to manage humidity. When it starts to fail, the unit may stop controlling humidity well, leave the air feeling damp or dry, or run its humidity feature incorrectly. A genuine sensor reads moisture the way your Daikin expects, keeping that control accurate — where a non-genuine part can read off. Depending on your model an additional part may be required — contact us before ordering to confirm what your unit needs.