Fireangel Carbon Monoxide Alarm Detector 10 Year Battery Life FA3820

The FireAngel FA3820 carbon monoxide alarm features LED status indicators that are simple to understand. It runs on a 10-year sealed lithium battery and can be used both at home and on the go. What sets this alarm apart is its pre-alarm warning feature, which prompts ventilation when it detects low levels of carbon monoxide. You can conveniently perform weekly tests at a low volume with the combined test/hush button. As well as this, the Sleep Easy function lets you silence low battery/end-of-life warning chirps for up to 8 hours with a single press of a button.