The S/C/SC/H Series devices are for use as evacuation devices in all dwelling units, including but not limited to homes, apartments, hospitals, hotels and motels. The S/C/SC/H Series is provided with a 9V alkaline battery for back-up in the event building power is lost. The S/C/SC/H Series smoke, CO, smoke/CO and heat alarms are ANSI/UL 217, ANSI/UL 2034 and/or ANSI/UL 539 listed and are warranted for one year from date of purchase.