Founded in 1972 as Signals & Systems, SSI Technology designs and manufactures custom electronic and electromechanical devices for the defense industry. The company s range of products includes fuel level sensors, fuel water separators, and high- and low-current solid state switching devices. SSI Technology provides circuit cards, switching modules, cable harnesses and mechanical assemblies. It offers services for tanks, trucks, planes, ships and missiles. The company also handles cases related to temperature extremes, gun-firing and ballistics shock, vibration and humidity in equipment. The company additionally provides products for technology relating to liquid level sensing for military vehicles. SSI Technology is located in Madison Heights, Mich.