2 in 1 Battery-powered smoke & CO alarm with silence/test button Features convenient silence/test button， blinking power light， 85-decibel alarm Also includes side battery drawer and missing battery guard Low battery warning and tamper resistant 9-volt battery included， recommended battery replacement every 6 months

• Brand Name: First Alert
• Power Type: Battery-Powered
• Sensor Type: Electrochemical/Ionization
• Product Type: Smoke and Carbon Monoxide Detector
• Batteries Included: Yes
• Low Battery Indicator: Yes
• Packaging Type: Clamshell
• Number in Package: 1 pk
• UL Listed: Yes
• Test and or Reset Button: Yes