Does HSE recommend the use of CO alarms?
HSE strongly recommends the use of CO alarms as one useful precaution to give advance warning of CO in a property. Importantly alarms should not be regarded as a replacement for regular maintenance and safety checks by a Gas Safe Registered engineer. CO alarms cost between £20-£30 and can be purchased in most hardware shops. Before purchasing a CO alarm, always ensure it complies with British Standard EN 50291 and carries a British or European approval mark, such as a Kitemark.