The kit contains a strobe light and vibrating pillow pad that will activate when the interconnected alarms are triggered to alert the user to the danger. The Ei169/160 has an additional jack plug for adding an extra vibrating pillow pad or strobe. The Ei169/160 kit is compatible with the multi-sensor fire alarm Ei2110e, 160e series alarms and 140RC series smoke and heat alarms, along with any interconnected carbon monoxide alarms.