Abstract: The tilt switch device includes a cylindrical casing having a platform therein located near its upper end. A circular disc has a downwardly projecting flange or skirt which rests on the platform. A rod is threadedly attached to the center of the disc, the upper end of the rod projecting a preferred distance thereabove. The rod depends downwardly from the disc through a hole in the platform. Carried at the lower end of the rod in a pendulum-like manner is a tubular weight member which is immersed in a damping fluid contained in the casing. Whenever there is a sufficient relative angular displacement of the casing with respect to the rod, the disc fulcrums or pivots about a segmental portion of its peripheral edge to cause the upper end of the rod to rock upwardly.