A touch-free faucet provides control over flow and/or temperature by detecting object presence in one or more detection zones. In one embodiment, the faucet provides for continuous-flow water flow wherein the spout of the faucet pours water for a period of time regardless of whether an object is detected in a detection zone, such as the sink, during that time. The faucet may initiate continuous-flow based on the detection of an object in another detection zone, and may cause continuous-flow operation for a determined period of time based on the amount of substantially uninterrupted time during which an object is detected in a detection zone associated with initiating continuous-flow mode. Furthermore, the faucet may provide for user-programmable sensitivity affecting the amount of continuous-flow time that is determined based on the amount of time that the faucet detects object in the continuous-flow mode detection zone.