• CO detector with voice alert modes & LED lights that pulse for power, CO detection, & low battery
• Photoelectric sensor technology - smoke detector detects visible fire particles, 85 decibel alarm alerts of fire
• Protects during a power failure - combo smoke and CO alarm operates on a 10-year, sealed lithium battery
• Low battery warning feature indicates when the battery needs replacement
• UL Certified, 10-year limited warranty

Open Box | Looks and appears to be in great condition. Everything included with this item can be seen in the images. See pictures for product condition.