Abstract: Structure for locking a latching mechanism provided for controlling the opening of a range oven door selectively closing an oven cavity, so as to prevent the opening thereof when the oven cavity is at a high temperature such as during a pyrolytic self-cleaning operation. The locking device includes a thermal sensor which is caused to be disposed in accurate correlated relationship to the oven wall outwardly thereof as a result of a housing associated with the thermal sensor being secured to the oven wall. Resultingly, the sensor is retained in accurate preselected heat transfer association with the oven cavity while being free of exposure to fumes and gases generated in the oven cavity.