The cleansweepsupply.com product catalog, Carbon Monoxide Detectors. http://www.cleansweepsupply.com/pages/subsection1119.html Battery-operated carbon monoxide (CO) alarm provides continuous monitoring of CO levels and will sound a loud warning signal if elevated CO levels are detected, even during power outages. Battery lockout system deters covering battery compartment without installation of batteries. Slide-out battery door cover gives immediate access to batteries. Test/reset button tests unit for proper operation and resets carbon monoxide alarm. Red LED will pulse and a loud alarm pattern will sound when a dangerous level of carbon monoxide is detected. Green LED flashes every 30 seconds, indicating unit is operating properly. Power Source(s): 3 AA; Mounting: N/A; HUB Compliance: N/A; Compliance, Standards: N/A. http://www.cleansweepsupply.com/pages/item-kid21008872.html KID21008872 38.87 Kidde new http://www.oppictures.com/singleimages/240/KID21008872_1_1.JPG KID21008872 10047871088727 Well Being, Safety & Security Carbon Monoxide Detectors 190