BRK Smoke/CO Alarm,1 in H,5.67 in W,PK6

Smoke/CO Alarm, Battery Chemistry Lithium, Battery Location Back, Battery Locking Pin No, Battery Size 10-Year Sealed Lithium Battery, Communication Protocol Not Applicable, Compatible With Not Applicable, Detector Type Smoke/CO Detector, Includes Mounting Bracket, Mounting Screws, Number of Tandem Detectors 0, Power Source Removable Battery, Sensor Type Electrochemical, Photoelectric, Visual Alert Type Green LED, Red LED, Volume Level 85 dB, Alert Type Sound, Battery Backup Yes