This is made to fit around a smoke detector and trigger the test sound when pressed. This is a joking way to stop any discussion of politics at thanksgiving or other large family gatherings. once printed glue the “actuator” part either to the appropriate location on the underside of the button or to the test button of your smoke detector to give it a lift if need be. It is unnecessary if your test button sticks up.
The author marked this model as their own original creation.