* White * Battery powered * Combined smoke & carbon monoxide protection for added safety in a single unit * Loud voice alarm eliminates confusion & indicates whether fire or CO danger * Extra sensitive carbon monoxide detection with state of the art electrochemical technology * Also with ionisation technology for quicker smoke detection * Test & reset button that means that you can varify alarm operation * Low battery indicator with a voice that announces " Low battery" & red LED flashes * Easy installation * 5 year warranty * CE marked