SW-18110P is a sealed spring type non directional vibration sensing trigger switch, which can be triggered at any angle. This series of switches are in open circuit off state when they are at rest. When they are touched by external force and reach the corresponding vibration force, or when the moving speed reaches the appropriate (eccentric) centrifugal force, the conductive contact feet will produce instantaneous conduction and present on state. When the external force disappears, the switch will return to open circuit off state.