Ensure your family's safety with the FireAngel Digital CO Alarm. This advanced alarm detects poisonous carbon monoxide gas, emitted from faulty household items that burn fuel incompletely. Sources can include ovens, boilers, BBQs, fires, heaters, and blocked chimneys. Unlike the deadly gas itself, this alarm provides an audible warning and visual alerts on its digital display, which also shows temperature and humidity levels. The alarm includes written instructions for guidance. It features a "ventilate" alert for increasing CO levels and can be tested with a simple button press. The built-in 10-year sealed battery provides lifetime protection without needing replacements. Rigorously tested in-house and third-party certified (Kitemark Approved by BSI), it meets BS EN 50291-1:2018 and BS EN 50291-2:2019 standards, and is UKCA & CE Marked. Suitable for domestic premises including static and mobile homes, caravans, motor caravans, and boats in England, Wales, NI, and Scotland. Product summary: Digital Carbon Monoxide Detector, 10-Year Sealed Battery, Visual & Audible Alerts, Temperature & Humidity Display, Ventilate Alert, Kitemark Approved, CE/UKCA Marked.