Thinks, speaks, and alerts your phone.

• Detects fast and slow burning fires and CO
• Speaks in a friendly human voice
• Silence false alarms from your phone
• Tests its batteries and sensors automatically
• Expires - Sept. 20, 2031
• This is a used item and may show signs of prior use such as scuffs, scratches and fingerprints.  
• Package may be damaged.
• Condition-Used/Good