Installed on door as single component, GEZE TS 5000 surface mounted door closer and GEZE Boxer electro-mechanical concealed door closer combine free swing and hold-open function. Once door has been opened, it can be passed through in either direction without additional force since closer remains under electrical bias voltage. Comfort hold-open function enables door to remain locked in position at end of free swing area without closing in uncontrolled manner or jamming in partially closed position.