The Adjustable Pressure Switch is a touch switch designed for use by individuals with fine motor and upper extremity disabilities. The amount of pressure needed to activiate the switch can be changed in small steps from light to heavy by twisting the cap. This makes the switch usable by those who can only exert light pressure as well as by those who prefer a firm pressure requirement in order to minimize unwanted presses, perhaps resulting from tremor. This adjustable switch has a solid hexagonal base that tessellates and fits the standard Big Switch mounting plate. The back of the switch also has tappings to fit the Tash mounting system. The switch terminates in a standard 3.5-millimeter jack plug. SIZES: Large and medium. DIMENSIONS: Large, 5 inches in diameter; medium, 2.5 inches in diameter. COLOR: Red, yellow, green, or blue.