About this item

• Ionization sensor technology senses invisible fire particles, associated with fast flaming fires
• Smoke alarm operates on a 120V wired power source with a 9-Volt alkaline battery backup (included)
• Front-loading battery door allows for easy change of the battery without removing the alarm from the mounting bracket
• Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam
• UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.