Carbon Monoxide Alarm, Battery Chemistry Alkaline, Battery Location Front, Battery Locking Pin No, Battery Size AA, Communication Protocol Not Applicable, Compatible With Not Applicable, Detector Type CO Detector, Features Front Loading Battery, Includes Mounting Anchors, Screws, Number of Tandem Detectors Not Applicable, Power Source Hardwired, Sensor Type Electrochemical, Visual Alert Type LED, Volume Level 85 dB @ 10 ft, Alert Type Sound, Battery Backup Yes, Color White, Hush Mode Yes