▪ 120V AC With 3V Alkaline Battery Backup
▪ Photoelectric Smoke Sensor
▪ Electrochemical CO Sensor
▪ Latching Alarm Indicator: Remembers Which Unit Initiated An Alarm
▪ Optipath 360 Technology: Patented Technology Provides 360 Degrees Of Direct Access To The Smoke Sensor
▪ Spread Spectrum Horn Tone: Lower And Varying Frequency Makes It Easier For The Elderly With Normal Aged Related Hearing Loss To Hear The Horn
▪ End-Of-Life Signal (CO)
▪ Single Test/Silence Button
▪ 7-Year Limited Warranty
▪ Mfg #SC7016BTCA