Basic Carbon Monoxide Alarm

This Carbon Monoxide Alarm alerts user to replace it after 10 years of operation. It can be installed in any AC wall outlet, but has battery back-up with a 9V battery (included). Features: test/reset button, tamper resistant-unit goes into alarm when removed from outlet, low battery Hush-silences low battery chirp for up to 12 hours, LED's-green for normal operation and red for alarm and a 5 year limited warranty.