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It lets you know if propane natural gas methane or carbon monoxide are present in your home. This First Alert alarm plugs into any standard outlet and it has a backup battery for uninterrupted protection during power failures. 3 in 1 protection Warns against natural/methane propane and carbon monoxide. Electrochemical sensor Provides all the necessary protection to help keep your family and your home safe. Backlit digital display For easy reading during an alarm or when any button is pressed. 120V AC plug-in The alarm plugs into any standard outlet with no additional mounting necessary and comes with a line cord. Battery-backup It operates at a loss of voltage. Test/silence button Mutes unnecessary alarms immediately. Also tests alarm function. Low battery warning Notifies you when the battery needs to be replaced.
- 3-way protection against natural/methane gas propane CO
- Backlit digital display
- 120V AC plug-in with battery backup
- Test/silence button
- Low-battery warning
- End-of-life timer