The faucet has a fitting body, which has a base (2) that is securable to a wash-stand or a building wall and a housing (3) that is detachably mounted on said base. The housing (3) has a housing (3) that has an outlet member (4) and a water outlet opening (5). An electrically operated valve (6) and a presence detector (7) are mounted on the base (2). The presence detector (7) is mounted in a receiving space (18) of the housing (3) on a holder (8) that has electric contacts (30, 31). The holder (8) is positioned so as to be mechanically and electrically detachable on a contact carrier (58) that is secured to the base (2) and has electric contacts (34, 35).