Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

This detector features a mute button to silence unnecessary alarms and also tests the alarms function with the same button. It offers an EZ access battery door, a front-open compartment that allows easy battery change without dismounting the alarm, low battery signal mute that quiets the low battery signal for up to 8 hours, and an end of life timer that chirps when it is time to replace it.