The sensing distance on the faucet is pre-set; however, it can be further adjusted following these easy steps. Begin by pressing and holding the on/off button on the control module for about five seconds. The water will flow for a moment, and the LED light on the sensor will flash on and off as the water flow stops. Release the on/off button and place your hand at the chosen distance from the sensor. The LED light will flash ten times, then stay illuminated on the tenth flash to tell you that the range setting has been saved.