Adapter load button decoupled from loading unit sensor

A surgical device adapter for coupling an end effector to a handle assembly is provided. The surgical device adapter includes: a sensor link assembly (450),(480) engagable by the end effector upon coupling the end effector to the surgical device adapter; a load link (402) movable by the end effector from a first position to a second position, wherein in the second position the load link locks the sensor link assembly and in the first position releases the sensor link assembly; and a sensor engagable by the sensor link assembly upon proximal movement thereof in response to release by the load link.