Displayed here is a carbon monoxide alarm with a ceiling-mount design. It offers interlinking with an unlimited number of alarms in a wireless way. This carbon monoxide alarm provides reliable performance with high sensitivity. 

• Operates with one 9V battery.
• Battery life over two years.
• Low-battery warning signal.
• Green LED flash light.
• Push-button testing function.
• Automatic self testing.
• Sound volume: 85dB at 3 meters.
• Loud warning tone.
• Built-in sealed battery.
• Transmission frequency: 434.33MHz.
• 16 channels.
• No control alarm required .
• Reaches up to 200m.
• Over 1 year battery life.
• 9V alkaline battery included.
• Wireless interlinking.